I wish I knew what to do with the lousy memories. What helps me is when they come into my mind, I immediately force myself to think of something else instead of dwelling on it. For example, if stuff like "damn, i wish I'd been allowed to have friends ..." pops up, I immediately snap back, "Okay, chicken for dinner. Let's see if I have any cranberry sauce." It works, and after a while, it gets easy. It may sound weird, but it is possible to stop the bad thoughts. It's hard, so I work at it. The good thing is that by the time you're done with the second thought, the first one will have melted away - at least, with practice. The hardest thing to deal with is the fact that there can be pleasure in all of those bad memories. You want to relive the past hoping that some day, some how, the ending will be different. It allows a person to feel sorry for herself and not move forward. It's a private pity party.