Memories of shameful things i did in the past are a big problem for me too. Like you, they attack me all thru the day. I roast in shame when i think of how i embarrassed myself, especially when (hypo)manic. I've noticed that when i feel bad, i also condemn myself for feeling bad, like, "There she goes again, abusing herself." (I call myself a stupid idiot passionately.) I've decided to stop feeling bad about the feeling bad and just accept that i DO feel ashamed of myself, that i DID act stupidly in that instance, rather than trying to reject my feelings. I guess this is a strategy of last resort, when other methods have not helped.

Sorry you're feeling this way too. I know how painful it is. I hope you find a method that works for you.