Words by Shelley Bosworth, Business Leadership Expert & Executive Coach.

Here is something nobody says out loud in the boardroom: the more senior you become, the louder the self-doubt can get. It seems counterintuitive. You have the title, the track record, and the team. You have made good calls under pressure and navigated the kind of complexity that would have stopped an earlier version of you in your tracks. By every external measure, you have earned the right to trust yourself. And yet there you are at 11pm, replaying a decision you made at 9am, wondering if you read the room wrong, said the wrong thing, moved too fast, or not fast enough. If that sounds familiar, you are not alone. And more importantly, you are not failing.

We tend to frame second-guessing as a confidence problem: something to be fixed, pushed past, or quietly managed before anyone notices. But that framing misses something important as the question is not simply why smart leaders still doubt themselves. The more useful question is what that doubt is actually telling them, and what they do with it.

The first thing worth understanding is that high-performing leaders tend to second-guess themselves more, not less, than their less effective counterparts. In fact, the more sophisticated your thinking, the more variables you can hold in mind simultaneously, which means more room for nuance, more awareness of what you do not know, and more sensitivity to the potential consequences of getting it wrong. Certainty, it turns out, is often a function of limited perspective rather than superior judgment. The leader who never doubts themselves is rarely the most thoughtful person in the room. But there is a significant difference between productive self-reflection and the kind of paralysing second-guessing that erodes both confidence and performance over time. The first makes you sharper. The second keeps you stuck.

The distinction often comes down to what is driving the doubt. Productive reflection sounds like: Is this the right direction given what I now know? or What am I not seeing here? It is forward-facing, curious, and leads somewhere. Destructive second-guessing sounds more like: What will they think of me? or What if I am not as good as they believe I am? It is rooted not in strategy but in fear, specifically, the fear of being found out. And that is the fingerprint of imposter syndrome, which does not disappear when you become successful. For many leaders, it quietly scales with them.

A practical step worth trying is when you notice yourself spiralling into self-doubt after a decision, pause and ask one question: am I questioning the decision, or am I questioning my right to have made it? That single distinction will tell you a great deal. If it is the former, you are in problem-solving mode. If it is the latter, you are in imposter mode, and no amount of rethinking the decision will resolve what is actually a mindset issue.

The second practical step: create a personal evidence file. Not a performance review but something simpler. A running note, on your phone or a notebook, of decisions that went well, moments you led with clarity, and times you held the room when it was difficult. When imposter syndrome is running the show, it has selective memory. It will find every mistake and forget every success. The evidence file is a direct counter to that. Not to inflate your ego, but to give your brain access to an accurate picture rather than a distorted one.

None of this means eliminating doubt entirely. The leaders who concern me are not the ones who second-guess themselves. It is the ones who have stopped doing it altogether, who have confused conviction with certainty and stopped questioning whether they could be wrong. That kind of brittleness is far more dangerous than self-doubt in a thoughtful, driven leader. The goal is not to become someone who never questions themselves. The goal is to become someone who can question themselves without it costing them their momentum.

That is a learnable skill. It takes self-awareness, and it takes practice. But it starts with something simpler than most leaders expect: the willingness to name what is actually happening, rather than pushing through it and hoping it resolves on its own. Smart leaders second-guess themselves because they care deeply about doing it right. That quality, that drive for integrity and impact, is the same quality that makes them worth following. The work is not to suppress it but making sure it is serving you rather than holding you back.