Get over it already

I can't remember what I got for my Birthday two years ago or where we went to dinner, heck most of last Christmas is a blurr. I would like to know how others can remember so much from their past so vividly that it impacts their every move and their very happiness daily and they are sure their future will always be affected by it. Come on get over it already. You could "Just Flush It" out of your mind if you wanted to and just learn what you need to from it to make sure it doesn't happen again.