I already don't hurt people. My problem was that I was entering mental states that, if I continued to enter them, made me somewhat liable to potentially hurt someone.

Also, the people who make me extremely angry have so far been either people who I am not near in person (historical figures and people running organizations with goals directly counter to my interests), or people with power over me (I'm a disabled teenager, they're legally allowed to do all sorts of stuff and call it 'treatment' if they wanted to), both of whom are groups that I really don't want to or can't scream at. (I would like to scream at the people who state that preventing deaths from measles leads to autism, and that a chance of autism is worse than a lower chance of dying painfully, but they quite wisely avoid me.)