Thanks for all the suggestions. I'm not sure there's anything non-violent that really works. Writing is something I normally like to do but it's hard to find the concentration and energy for it now.

As for the reasons for my anger, I don't want to give away so much that people can identify me. Long story short, there have been multiple breaches of trust from mental health institutions that were supposed to help me. At this point I'm sorry I ever asked for help in the first place, because they've only caused more damage.