I just don't send anything out until I'm ready to stand by it, and all the intentional choices within it, ride or die. I'm in a couple workshop groups, that's been great for like, practicing taking critique in a safe way? not managing those urges, more of an exposure therapy approach i guess. it's made me a lot more confident about saying "actually, I did that bit on purpose, and it's important to me, so I'm keeping it, thanks" or "i did do that bit on purpose, but maybe it's not as important to the piece now as it was when I started writing, and it no longer sparks joy" that, and hearing from editors so often that they have to reject a lot of good work that they like, i usually just assume that's what happened to me lol