How Can I stop cussing my parents when I'm mad?

Whenever I'm extremely mad, I flip and start cussing them non stop for about a minute. I always get talked over, or slapped sometimes. You see, we have good relationship, too close probably. My dad swears a lot, he swears everytime he opens his mouth. Then I just got into the habit of cursing him when I'm extremely mad at him. I'm 20 btw. I feel so ashamed afterwards. What should I do? His not a bad father, but he always curses at my mom and call her names, he is always jelouse, he always acuse her of baseless things. We are really close, too close, we are like friends, but when I get mad, I swear like there's no tomorrow. It's also the same with my older brother. I don't like being teased, whenever I'm annoyed or mad I curse at him. Something I would tell them to die to, which I don't mean, just you know swearing. I don't know, outside, I act so classy and pretentiously kind to my coworkers and strangers. Maybe I should distance myself from them? Or maybe I should talk less at home?