My addictive personality

I have one of the most addictive personality I know. This is true in just about every facet of my life. Food, exercise, games, ect.. I don't now why. I just do something and I have to take it to the next level. That is why I wasn't satisfied with running a 10k or something like that, I had to do the whole marathon. Currently, it is Tetris on Facebook. Just can't get enough of it. Is anyone out there willing to admit their obsessions?