I need to leave my baby's father..

I need to leave him, for my own sanity he is an alcoholic and a cocaine addict I can't do this anymore, I tried for so many years to be by his side, but it's not working also think he is low key cheating on me with other people I say people, because random "friends" of his always show up at our house and he just leaves with them I'm really tired of this I can't do this anymore, but I have no job and no place to go, my dad won't take me in he lives with his gf and their daughter, my mom won't take me in because I have 2 babies and can't stay there because she has a full house I live in a small town and there's no where to go I'm tired of everything tbh I just want to make him part of my past and move on, he also always threatens with taking the kids away so I stay, but I'm so miserable with him. Please help me 💔😭