scared to divorce, scared for custodial rights.

So long story short we were in the process of divorce even before I was pregnant, pregnancy was really hard I did it all by myself and with him and I arguing constantly. He has pushed to stay married even though we don’t live together “for the baby” I gave him a month to put his all into making us a priority and what do you know… nothing changed. I am scared he will fight me in court or not go along with the custody order I have written up, I have all the paperwork ready for divorce but with where we currently stand I am able to go without worry abt him trying to have rights or trying to do anything because there’s not really reason to. But I want to be free and out of this marriage so badly he is bad for me in so many ways and is never there for my baby. He hasn’t paid for anything hasn’t seen baby in almost a month now hasn’t contributed in any way at all. Scared for him if he was ever to have rights to my baby if he would smoke weed in front of baby, he also lives in an unsafe area like I do nOT want baby being over there. I’m just very scared of what that looks like. The marriage is as much as a piece of paper, literally nothing more than that. I hoped he would show up as a dad atleast but he can’t even do that.