I don't want this anymore

I had a child with my boyfriend of only two years at the time. I stressed and convinced myself I would feel better about it eventually. I didn't want to keep the baby, but everyone kept telling me it was just depression and that I would get better. My child is 9 months old and I still don't want to keep him. I'm not ready for this, I want better for him. The father and I split by my choice recently but I live with him. I have nowhere to go, and the father forces me to watch our son always. If I try to get him to watch him, he refuses and leaves. If I try to leave, he threatens to call the police to report the car stolen (it's his cars) and that forces me to stay, he then brings me our son and puts him onto me, and leaves. I don't want this and I don't know what to do. I don't want anything to do with either of them. I care for my son and love him, but he deserves so much more than what I could ever give him. I am sure I'm not ready to be a mom, but at this point I feel trapped and alone on this. After everyone promised to be there to talk to, no one wants to be around me and all of my friends have left me. They blame me for staying, saying I should leave. But how can I leave if I have nowhere to go? I take full responsibility for my child, but I don't know how much longer I can do this. This isn't good for my son, I want him to be in a happier family and home, with someone who can support him. But the father (who is on the birth certificate) doesn't want things to change. Help me please, I am sure our situation is reflecting onto my son, and all I want for him is to be happy and healthy with a loving family.