I feel stupid admitting it, but I have this sort of a mental problem. Several times a day a thought pops into my head and I sort of ruminate over it before I realize what Im doing and force myself to think about something else. I would like to be completely free of the thing. Im basically reliving an archetypal argument with somebody I used to know. Its about all the things I wish I said then. The "healthiest" thing would probably be to see the person again and say those things to their face, but I would rather do pretty much anything else. I used to go to therapy years ago, completely unrelated issue, but I didnt find it very helpful. What can I do by myself? Its starting to really bother me.