Im 16 pregnant and in foster care in CA is it true ALL visits must be supervised?

Well I was having abusive problems with my parent at home (whom didnt know I was pregnant) and was kicked out and taken in by the foster care system, after two months. My foster mother was very kind at first but quickly changed when my boyfriend came around and I had thoughts of going back home since my parent and I had fixed things and forgiven each other after she had therapy (which is still continuing at the moment). My foster mother is very controlling and she wants to be watching me and my boyfriend 24/7. She never lets me go out with my friends and says she has to meet everyone of them before they could get supervised visits. Shes always watching what Im doing and its been a bit creepy lately since shes been thinking shes my real mom. Shes been lying about a couple things and I really want to leave her or at least get some time away from her and be with the people I love.She says my boyfriend can only see me 6hours a day when the babys here and I dont think thats fair because he works so hard everyday except Sundays which she refuses to let me see him on Sundays and not even go to church with him which we always did. Im tired of being isolated and it just being her. Im very suffocated by her being around me all the time and trying to control how I think and what I do. I was wondering if anybody knows if all visits must be supervised 24/7? Ive talked to my social worker and she said she has to know who Im with but not always be around. Does anyone know how I can get out of this mess before my baby comes? I am 40 weeks pregnant.