Fear is the mind killer.
It’s easy to overthink, but without omniscient info, execute the plan you have.
Regret is tough because it piles up as you age. It’s easy to look back and think “dang, I did a lot of bad moves” while ignoring all the upsides and limited info you had at the time.
In many ways our easy access to info makes you think “just one more search” will make my decision 10x better when in reality it’s a huge super power you should use to drive execution, not the other way around. Think of what an advantage it is to have that much context on the scale of human existence. At least for me, this makes me more optimistic: I make less mistakes than ages before me because I’m relatively better informed. Note: this doesn’t mean the choices are always good, just that I understand them more completely.