What do you think about me getting violent impulses like I'm craving a fight but I prefer to be a pacifist.
Why do you think you have violent impulses?
I used to tell myself I'd become an asshole like this.
I'm glad that you aren't taking the violence route and stopping yourself. It is important to know what's right from wrong, and harming people is extremely harmful. You need  to find an appropriate outlet for your anger before you stop being a pacifist.
Maybe I should stop being a pacifist. I have anger issues after all.
Having anger issues is something that you have to work on. Slowly take time to understand what triggers you so that you can learn how to overcome those triggers.