I feel it is impossible to let go of past mistakes, and suffer from very strong feelings of guilt which in turn fuel considerable amount of self-hatred. I've already looked up most ways to handle guilt and such, but have not found any method useful.

I also have an infinite list of cringy or unpleasant memories which arise and go -seemingly out of nowhere- and make me uncomfortable for an embarrassing amount of time

I wanted to know if people relate, if you think it might be related to the condition, and lastly if you found a way to handle one or the other in any effective manner, especially the first, since i am at a total loss. (This last one, though, you can skip, since i don't expect anyone to have such advice)

I have, however, found a way to handle the second, which is to say I've managed to make it more bearable: i simply try to relax and understand that this memory only has such a profound effect because of its arising within me now, but that soon i will "forget" about it again, and a new bad memory will arise, which will go away in much the same way. Understanding that these thoughts are temporary, that they arise and go constantly, has helped me make them less scary and uncomfortable. (The problem, i should make clear, has not disappeared or has not even drastically been reduced, but this "method" is at least of help) Hope it may help you as well.

Have a good day, and thanks for reading.