You having a criminal record is something I'm not that shocked about given what I've read about you other places here. Specifically you seem to have a short temper and violent tendencies, and you mentioned doing drugs, so it doesn't shock me to be honest.
As for myself, I once got violent towards a kid in school and kicked his face, causing his glasses to fly off cause he was being annoying. Something changed in me after that and to this day I still regret doing it. I pretty much became a pacifist after that and I've never been violent to anyone after that.