This is unironically what I do. It’s helpful to figure out whether that mistake you made is actually important, or if you just think it is because it’s embarrassing. The easiest way to figure it out is to take it to the extreme; is it going to kill you? Probably not, so you’ll probably die from something else. Is it going to effect things so much that people will remember it after you die? Probably not, so one day everyone will have forgotten you, including this embarrassing thing you did. So, might as well just forget about it - everyone else will.