(Serious advice needed) How do you act during an argument with someone who doesn't like you and deliberately uses your stutter against you?

(Serious advice needed) How do you act during an argument with someone who doesn't like you and deliberately uses your stutter against you? I get very angry during arguments because I always lose them and then I start cursing loudly without paying attention to the consequences of my words. I sometimes use violence as a way of defending myself because I know I will never win with talk, I really get angry and do stuff that I regret afterwards. I use silence sometimes to avoid problems but there is a person (I don't want to mention his/her name) who know that and try to push me to an argument by looking down at me and not giving me the respect I deserve. He/she doesn't like me and think Im stupid, I get very angry when he/she does that and I really want to use violence to satisfy my anger of being disrespected.