Also, try, try, try to put it out of your mind. I know it's not easy. At 41, I still catch myself going back over and over mistakes I made in my teens with people who probably don't even remember the incidents in question, but when I remember them it's like it only just happened. I know intellectually that the incidents were the proverbial "small stuff" that I shouldn't worry about, but convincing my emotions of this is very difficult. When I catch myself rehashing long-gone events, I have to step back and consciously move my thoughts to another topic.
Regards,
Patricia