Hello PianogirlPlays:

Yes, it seems like I can remember every bad thing that ever happened to me or with me... every slight... every stupid stunt I ever pulled. I replay them over-&-over in my mind... whether I want to or not. I do try to practice mindfulness. But this only goes so far. Writing it down helps some. I know full-well that the past is gone & cannot be changed. But it's one thing to know that intellectually. It's something else to put it into practice. It's an ongoing struggle.
You're correct, I think, in saying that analyzing it doesn't help & sometimes seems to make it worse. I guess some folks benefit from talking it through with a therapist or a close friend. I don't have either at this point. For me, the best antidote is simply to try to keep as busy as possible doing things I enjoy. When I'm busily involved with something I like to do, the unwanted memories tend to come back less frequently & with less strength.