ANGER AND REVENGE-IT IT WORTH IT?

I'm starting to think that maybe all my anger and wanting revenge for my Mom's injury is not worth it. I don't think it's accomplished anything except bring me close to a nervous breakdown and cost me a few friends. Being mad only brings temporary satisfaction, and won't change what happened. Maybe now I can put the whole damn thing in the past where it belongs and get on with life. I've been so immersed in it, I havn't had a life the past 5 years.