When I was a teenage I worried more and maybe even thought too much. It effected me and got me upset for no reason other than these false scenarios I build up in my head. I had no way of separating myself from them and not feel the anger or worry. I wouldn't take it to the next step which would be to plan contingencies so I started forcing myself to stop worrying and it gave me a more positive laid back attitude. It may have saved me a few years till a heart attack or ulcer. The downside is that I don't plan ahead enough and my thoughts seem to be more haphazard. ADD-like.