WHY did the doctors give you medication and get you high on drugs when THIS IS NOT DEPRESSION CAUSED JUST BY CHEMICAL REACTIONS IN YOUR BRAIN!? Sorry, it makes me mad, that is the most stupid thing to do. Instead of giving you REAL help, they give you some drugs: here take some pills, this will make the problem go away...NOT. I really don't understand why some doctors spend so much time in med school if they get out dumber than when they came in.
You need to get out of there, and you need to get out of there FAST. She sounds in a few ways like my mother, well better, you haven't got bruises on you, so I guess that's a plus, but this women is making me MAD.
Are there any shelters in your area? I know that sounds like a scary step to take, but what you are living through is called HELL and it is very real and painful, and I would never want to bear what you are bearing right now again. You don't want your daughter to live in that abuse. Living like that makes an impression on your character: when you finally get your own place, you will cry, I'm telling you, you will sit at the table and eat dinner and won't stop praising God how wonderful it is to feel safe and not try to hide in a little corner. The faster you get out of there, the less psychological damage she can do to you -- and IMPORTANTLY, to your wee little girl. Babies can feel energy very well, and that is mega abusive energy in that household.
This is ABUSE, and when you go looking for a place to stay, that is what you need to SAY to get it through to people, because people tend to like to ignore abuse, because it's not them and it's easier to ignore. And your partner doesn't sound like much of a man either, letting you and his daughter rot in that hell either.
Just get out of there -- go to the welfare office, talk to a counsellor, figure out your options, and don't stop knocking until the door gets opened. Just keep knocking, and the door will open.
God bless and hope everything goes well.*hugs*