yes. ramblings ahead. [TL/DR; not all mistakes/traumas can be useful, learned from, valuable, etc.]
many people seem to value their bad memories, e.g. "but my mistakes and traumas make me who i am". agreed -- that's the problem. i still wouldn't "do" life without my flashbacks, but it'd be less shitty. as to regret, guilt, shame, etc.: i can see the value of learning, but my (few) traumas and (countless) mistakes have shaped me so much that applying learning is impossible. "knowing better", when one has been paralysed by one's mistakes and traumas, is only pointless salt on the wound. they compound and resonate with each other, shape one's possibilities, esp. early-childhood traumas. i've been stunted in this way -- still toxic, stupid, naive, selfish, myopic... no hope for becoming a better person. still make the same mistakes over and over, have i learned anything at all? with all the privileges and opportunities i've had, why can't i stop myself from fucking things up? i can only plead that fucking up comes extremely naturally to me.
i don't know when i lost the capacity to learn, or change in any meaningful and positive way, but i suspect it's very early in life. aside from shame, self-hatred, etc. another effect of remembering these "character-building" experiences is doubt in everything i think or do. rightly so: to this day, evidence points to my thoughts and actions having more negative than positive effects. i've been hurt and hurt others so often that doubt seems an inevitable consequence -- "the best predictor of future behaviour is past behaviour". i'm not sure whether suicide would be easier with or without memories of mistakes and traumas... but i'm almost certain i'd still be suicidal without memories of them, since i'd still be completely dysfunctional and able to recognise my toxicity. (being toxic, suicide seems the best i can do.)
given the choice to remove any memories you wanted to get rid of, would you opt for it? is there some value in partially understanding why i'm such a fuck-up?