Can someone please take time to read this?

I lost my boys back in Dec. to dcf custody. I was wanting to know if I stayed in a shelter could I regain custody of my two boys? I'm stay'n with a guy right now, but my boys are not allowed around him bcos he failed a drug test and he won't participate in the service plan. I want to leave him and regain custody of my boys and be a family again. I lost custody of my boys bcos I was deeply depressed and made foolish mistake i truly regret and cut my arm up. Can I stay in a shelter, get out of here and get back custody of my boys if I stay in a shelter? I go back to court in June to see if I get them back. I've no family here in Massachusetts so I've noone to stay with. so a shelter is my only option to try and get my boys back. Pls no rude comments. Thx