Why Perfectionism Erodes Self-Trust

You already knew the answer. You just couldn’t prove it yet. So you opened another tab.

You finished the project two days ago. You’re still finding things to adjust.

You’ve reread the email five times — not hunting for a typo anymore, just checking, one more time, that it’s right.

You made the decision an hour ago. You’re still building the case for why it was the right one, just in case someone asks.

Someone asks where you want to go for dinner. You know. You just hear yourself say, “I don’t know... what are you thinking?”

There’s a version of this that gets chalked up to fear of failure, or high standards, or just being an achiever. But underneath the specific checking and rewriting is something quieter: a growing sense that your own judgment doesn’t fully count until you’re certain — and certain has a way of never quite arriving.

It usually starts with an actual mistake. A real one, not a catastrophic one — something that cost you a redo, an apology, an awkward conversation, a missed shot at something you wanted. Mistakes like that tend to feel expensive. So you did the reasonable thing. You decided to be more careful.

Careful worked. Fewer mistakes, cleaner outcomes, less cleanup. So you got a little more careful. Then a little more.

Somewhere in there, without a clear moment you could point to, careful quietly turned into certain. Not just double-checking your work — needing to feel sure before you’d let yourself act on it at all.

The trouble is that certain is a much higher bar than careful ever was. Careful is achievable — you can point to what you checked. Certain, in most real decisions, basically isn’t: there’s always one more variable, one more source, one more way it could still go sideways. A hiring decision could always be informed by one more interview. A room could always take one more round of edits. A relationship conversation could always wait for a calmer week. The finish line kept moving, and your own judgment stopped feeling like enough to reach it.

So you found other things to lean on instead. More research. More preparation. More checking. More rewriting. More waiting for some kind of sign that this was actually the right call, instead of trusting that you’d already made it three drafts ago.

Somewhere in that loop, you quietly stopped trusting yourself to decide anything before it was perfect — which, in practice, meant you stopped trusting yourself to decide much of anything at all.

You’ve probably heard some version of: lower your standards. Embrace imperfection. Done is better than perfect. All reasonable-sounding. None of it usually sticks, because none of it touches the actual problem.

The standards were never really the issue. Plenty of people hold high standards and still trust their own judgment enough to act before they’re certain. What’s different here isn’t how high the bar is — it’s the belief that you’re only allowed to trust yourself once uncertainty has been cleared out of the way entirely. Telling someone who believes that to “lower their standards” is a bit like telling someone afraid of heights to stop looking down. Not wrong, exactly. Just aimed at the wrong layer.

The same goes for more information, more preparation, more reassurance from someone else. Each one can genuinely help in the moment — an extra source, a second opinion, one more pass at the draft. The trouble is what reaching for them, over and over, quietly teaches you: that your own read wasn’t sufficient on its own, and something outside you had to confirm it before it counted. Do that enough times and you’ve trained yourself out of trusting your first read at all, even in the moments it was right.

This pattern doesn’t come from one place, and it doesn’t require a dramatic backstory. Sometimes it grows out of an environment where mistakes carried consequences well out of proportion to the mistake itself. Sometimes it’s conditional approval — where attention or affection tracked a little too closely with performance. Sometimes it’s anxiety, where uncertainty itself is the intolerable part, and perfection becomes a way of managing that rather than a goal on its own. Sometimes it’s simply the shape of a particular school or workplace, where excellence was the baseline and anything less got noticed immediately. And for some people it connects to being neurodivergent — where the gap between how much effort something actually took and how effortless it needed to look became its own confusing evidence that more checking, more control, was always necessary.

Different histories, and more than one can be true for the same person at once. What tends to be consistent is the lesson underneath: your judgment is provisional until something outside it signs off.

Rebuilding this doesn’t mean aiming lower. It means practicing something specific — making a real decision before certainty shows up, and letting it stand.

That might look like sending the email after two read-throughs instead of six, and not opening it again once it’s sent. It might look like calling a project finished when you’re genuinely satisfied with it, instead of waiting for the moment you can’t find one more thing to improve — because for a lot of perfectionists, that moment doesn’t arrive on its own.

It might look like noticing the specific urge to check one more time, one more source, one more pass — and, on purpose, in something low-stakes, not following it. Not because checking is bad. Because the point is finding out what happens when your own read is allowed to stand without the extra confirmation. Usually, it turns out to have been enough all along. Not because you suddenly became more capable. Because you stopped waiting for certainty to give you permission to believe yourself.

None of this is really about ambition, even though it can look that way from the outside. It’s about collecting enough evidence that your judgment can hold on its own — without needing certainty to hand you the result first.

People-pleasing and perfectionism don’t resemble each other from the outside, but they tend to arrive at a similar place. One teaches you to trust other people’s reactions over your own read. The other teaches you to trust certainty over your own judgment. Different mechanisms, similar loss — your own sense of things stops feeling like something you’re allowed to act on by itself. That’s the pattern I’ve been calling self-trust erosion, and if you’re curious about the broader picture, I’ve written more about it in my guide to self-trust erosion.

If this is a pattern you recognize, my page on therapy for perfectionism goes into how we’d actually work on it. Or, if you’d rather talk it through first, I offer a free 15-minute consultation — no pressure, just an honest conversation about what’s actually going on.

— Angela DeGiaimo, LCSW | NY State of Mind Therapy Perfectionism therapy · Telehealth across New York State