I have OCD too. Yes, I know...it's very horrible. Sometimes I feel like a demon is taking control over my body. The things I've done to distract myself...music seemed to be the most effective. Multi-task. Keep yourself occupied, distract yourself from those thoughts. Don't think about them - avoid them. Think about other things. Good luck on this.
tried listening to music while working? I use my mp3 player a lot at work I don't think I would be able to get through the day at work without it. I have a manager that I think I would rip his head off half the time if I didn't have the music to listen to.
I think if you canalize that violence through art you will be fine, you can not hide your past or run away from it, but you can use your experiences to create art. Unfortunately, in today's society you just can not get back to them like you would like to
To give you an idea, I am working on a graphic novel about a real case spree killer, well, the victims have the faces of individuals that almost messed up my life. Legally I can not tear them to pieces, but in my work they get stabbed and shot at will.