Overthinking and Self-Doubt: Learning to Trust Yourself
Have you ever made a decision and then spent the rest of the day wondering whether you made the right one?
Maybe you replay a conversation after it happens and wonder if you said too much, said the wrong thing, or came across differently than you intended. Maybe you ask someone you trust for reassurance, feel better for a little while, and then find yourself questioning the situation again later. Or perhaps you know, logically, that you’re capable — but when an opportunity or difficult decision comes your way, a quieter part of you wonders, “What if I’m not actually good enough?”
This can be exhausting.
And what makes it especially frustrating is that overthinking can look like problem-solving. You’re trying to understand what happened. You’re trying to make the right decision. You're trying to prevent yourself from making a mistake.
But sometimes, underneath all that thinking is something more vulnerable: “Can I trust myself?”
That question can sit at the centre of the relationship between overthinking, self-doubt, and self-esteem.
When Thinking Stops Being Helpful
Thinking things through is not inherently a problem. Reflection can help us learn from our experiences, make thoughtful decisions, and understand ourselves and the people around us.
The difficulty comes when thinking becomes repetitive without actually helping you move forward.
You might replay the same conversation several times, analyze someone’s tone of voice, compare different options over and over, or search for reassurance about a decision you’ve already made. You may keep thinking because you’re hoping that, eventually, you’ll feel completely certain.
But certainty isn’t always available. You can’t always know what someone else is thinking. You can’t guarantee that a decision will work out perfectly. You can’t prevent yourself from making mistakes or control how another person will respond.
When you’re already struggling with self-doubt, that uncertainty can feel particularly uncomfortable. Your mind may respond by thinking harder, checking again, asking someone else, or imagining every possible outcome. And ironically, the more you search for certainty, the less certain you may feel.
The Question Beneath the Overthinking
I often find it helpful to look beyond the thought itself and ask what the person is hoping the thinking will accomplish.
Sometimes overthinking is really an attempt to feel safe. You may be trying to make absolutely sure you haven’t disappointed someone. You may want to know that you’re making the right career decision. You may want reassurance that your partner isn’t upset with you. You may be trying to guarantee that you won’t regret your choice later.
In these moments, the goal isn’t necessarily more information. The goal may be to feel confident enough to trust yourself. That distinction matters because no amount of thinking can completely remove uncertainty from life. You can think about a decision for another hour, ask three more people what they would do, or replay the conversation one more time. You may feel better temporarily. But if what you're really looking for is the feeling of “I know for certain that I’m okay,” the relief may not last.
How Self-Doubt Can Feed Overthinking
Self-doubt isn’t simply a lack of confidence. It can involve repeatedly questioning your own judgment, abilities, decisions, or worth — sometimes even when there is evidence that you’re capable.
You might think, “Maybe I don't know what I’m doing,” even though you’ve handled similar situations before.
You might find yourself looking to other people to confirm that your decision makes sense. You may have difficulty accepting compliments because part of you immediately explains them away. Or you may hold yourself to such high standards that ordinary mistakes feel like evidence that you aren’t doing well enough.
This is one reason perfectionism can sometimes overlap with overthinking. If you don’t fully trust yourself, you may try to compensate by preparing more, checking more, working harder, or trying to anticipate every possible problem.
From the outside, this can look like being responsible, conscientious, or highly prepared. Internally, it can feel like constantly checking yourself.
Did I do enough?
Did I handle that properly?
What if I made the wrong choice?
What if people realize I’m not as capable as they think I am?
When Reassurance Starts Replacing Self-Trust
There is nothing wrong with asking for reassurance. We all need other people sometimes, and healthy relationships include support, perspective, and encouragement. The difficulty is when reassurance becomes something you feel you need in order to trust your own decision.
Maybe you send a friend a text before sending it because you want to know whether it sounds okay. Maybe you talk through the same decision with several people. Maybe you repeatedly ask your partner if they’re upset with you even after they’ve told you they’re not.
The reassurance can feel genuinely helpful in the moment. But if the doubt keeps returning, you may gradually become less confident in your ability to settle things for yourself. This is where building self-trust can become more useful than simply trying to stop overthinking. Self-trust doesn’t mean never asking for advice. It means being able to consider another person’s perspective without feeling that you need their approval before you can trust your own.
The Difference Between Reflection and Rumination
One question I often encourage clients to consider is: “are these thoughts helping me understand something, or am I trying to think my way out of uncertainty?”
Reflection tends to take you somewhere. You might think about what happened, learn something, make a decision, and move forward.
Rumination can feel different. You revisit the same information without gaining anything new. The questions change slightly, but the underlying uncertainty remains. Thinking patterns exist on a spectrum, and there can be many reasons someone becomes stuck in them.
But if you notice that your thinking repeatedly leaves you feeling more confused, anxious, or dependent on reassurance rather than more clear, it may be worth paying attention to the pattern.
You Don’t Have to Feel Completely Confident Before You Act
One of the traps of self-doubt is believing that confidence has to come first.
Once I feel sure, I’ll make the decision.
Once I know I’m good enough, I’ll apply.
Once I’m certain they won’t be upset, I’ll say what I actually think.
But sometimes confidence develops after we begin trusting ourselves, rather than before. You may not feel completely certain when you make a decision. You may still wonder whether it was the right one afterward. You may even make a mistake. Self-trust means learning that you can handle those experiences.
You can make a thoughtful decision and adjust if it doesn’t work out. You can make a mistake and learn from it. You can disappoint someone without deciding that you are a disappointment. You can hear feedback without allowing it to completely define how you see yourself.
That is a very different kind of confidence than believing you’ll always get everything right.
What Can Help?
A useful place to start is noticing when you’re genuinely solving a problem and when you’re searching for certainty that may not be available. If you’ve already considered the relevant information and find yourself going over the same question for the fifth time, you may not need more analysis. You may need to practice sitting with not knowing.
It can also help to separate what you know from what you’re assuming.
“My friend hasn’t responded yet” is different from “My friend is upset with me.”
“I made a mistake at work” is different from “I’m bad at my job.”
“I don’t know which option is best” is different from “I’ll probably make the wrong choice.”
That small distinction can create some space between what happened and the story your mind is building around it.
Another part of developing self-trust is making small decisions without repeatedly checking them with other people. You may still feel uncertain. The goal isn’t to eliminate that feeling before you act. It’s to discover that uncertainty is something you can experience without needing to immediately make it disappear.
And perhaps most importantly, notice what happens when you don’t get something right. Do you immediately criticize yourself? Do you replay the situation for hours? Do you assume you've disappointed someone? Do you feel an urge to fix everything immediately?Or can you eventually get to something closer to:
That didn’t go the way I wanted. What can I learn from it?
That shift may seem small, but it changes the relationship you have with yourself.
Self-Trust May Matter More Than Constant Confidence
We often talk about confidence as though the goal is to eventually reach a point where you feel certain, capable, and comfortable all the time. I don’t think that’s a very realistic expectation. There will be decisions where you aren’t sure, thats normal. There will be moments when you care what someone thinks of you. There will be mistakes, difficult conversations, unexpected outcomes, and times when you question yourself.
The deeper work may be learning that you can move through those experiences without abandoning yourself. Self-trust isn’t believing that you’ll always make the right choice. It’s knowing that if something doesn’t go as planned, you can respond. You can learn. You can repair. You can change your mind. You can ask for help. You can try again.
You don’t have to know that everything will work out perfectly in order to trust yourself to meet whatever happens next.
Learning to Trust Yourself
One of the most meaningful shifts can happen when you stop asking, “How can I become completely confident?” and start asking, “How can I learn to trust myself?”
Those questions sound similar, but they aren’t quite the same.
Confidence can change depending on the situation. Self-trust is more about knowing that you can listen to yourself, make thoughtful choices, tolerate uncertainty, handle mistakes, and ask for support when you genuinely need it.
You may still overthink sometimes.
You may still care what other people think.
You may still have moments when you wonder whether you got it right.
The difference is that those experiences don’t have to determine how you see yourself.
You can make a decision without knowing for certain that it's the perfect one.
You can make a mistake without deciding that something is wrong with you.
You can disappoint someone without concluding that you’re a disappointment.
And you can be imperfect without having to earn your right to feel worthy. That may be a much more sustainable definition of confidence.
If this resonates with you
If you find yourself constantly second-guessing your decisions, replaying conversations, looking for reassurance, or feeling like you can’t quite trust your own judgment, therapy can provide a supportive space to understand where these patterns come from and begin developing greater self-trust.
You don’t have to become completely confident or stop caring what other people think. Therapy can help you build a more compassionate relationship with yourself, become more comfortable with uncertainty, and learn that you can handle life’s decisions without needing absolute certainty first.
If you’d like to learn more, you can explore our Self-Esteem Therapy or Individual Therapy services to see how we support clients in this work.
