Shit relationship

How does one get out of a crappy relationship... I know the basics pack up and get out I’m welcome back home at my parents... it’s just so hard I’m 20 everyone my age has there own thing going on so I feel like I have no friends when I really do... I’m in a relationship I’m belittled, called ugly, constant ultimatums, and controlled if I bethe wrong he flips out. At the end of the day when the good things are happening it’s like the best thing in the world but I know that’s the feeling you get when you’re in a abusive relationship.... I just don’t have many friends it’s just hard. I just need some encouragement and I know the next week is rough but that’s when you have people there that will come out of the wood work it’s going to be weeks after when I’m back to being alone 😭