I keep this short (under 4 min) video bookmarked on my phone’s home page, as if it were an app. Must be decades old but has really helped when I was frozen when running a large project (30-40 people under me). https://m.youtube.com/watch?v=S2qHu_1VDEw

It’s called "The Fastest Way To Build Self-Confidence" and is a seriously helpful video, even if the fashion is really dated. Ineffective vs. effective ways to build confidence. Go direct!