I want to break up with the father of my child but i have nowhere to go

Ive been in an extremely unhappy relationship with the father if my child. Our sex life is horrible he has never pleased me once. He never does anything he says he’ll do, he acts like a complete child, he’s a total pushover and lets everyone walk all over him. Hes not romantic or passionate with me im just extremely unhappy and i want to leave so bad but i dont have money for me and my 3 mo to get a place to ourselves and no family to stay with. Ibe done my part constantly telling him that im unhappy and why and he just ignores it. Please give me some advice im losing it