How to improve self esteem?

Go to gym Increase wealth/assets Play sports that you are good at Put your self out of your comfort zone

Or as AltruisticVessel put it, just don’t give a shit.

Just do what you like. Don't overthink, even if you lose, you have experience

Draw personal boundaries, no matter what. When you respect your personal time and space your mind is relaxed.

Don't give a shit