Need advice on living situation

I’m never good at starting these..
My ex and I broke up due to domestic violence situation and I had to get out like, immediately, court ordered. So I’m staying with my parents who are the literal only people I have. I don’t have other family, I have NO friends at ALL, that’s not an exaggeration, I legit don’t have anyone I talk.
My step dad and I have never gotten along. That’s why I moved out immediately at 18 because that was an emotional/mentally abusive situation. But now that I got into a totally new situation, I had no choice but to come back here. I’m walking on egg shells and still getting yelled at. I got told I can’t leave the house without my dog (I went out for less than 2 hours on a date). My step dad revealed my mom is doing nothing but complaining about the dog and everything else when I specifically asked if the dog would be an issue with me coming back here and they said it wouldn’t be. I understand it’s different once you’re in it, but I was told it was ok. I can’t control her hair.
I’m being treated like a rebellious 12 year old and I’m really trying hard to pick my life up out of the dirt. I haven’t been eating. All I do is sit and cry, I can’t even get myself to do anything with my dog or my daughter because I’m so depressed being here. Every move I make I get snapped at, so I hide in my room, then get snapped at to leave the door open. I’m 31 years old.
What do I do? I can’t do this anymore, I really need advice on what to do when you have NOWHERE to go.. I’m going to end up doing something drastic and I don’t want to do that to my daughter, but I can’t keep doing this..