There’s only so much time in a day, in a year, and in a lifetime.
Which means for a limited time only, you have a choice. And that choice is either to learn to accept yourself (shortcomings et al.) or to let insecurity allow you to hide.
The first one is really hard. Nobody wants to face the things that haunt them, and it’s challenging to intentionally create short term friction in return for long term benefits.
But again since our time is so limited, it’s the only thing worth doing that’s left.