Going thru a divorce need advice

So I have to kids with my husband. 7 month off with epilepsy and a 5 yr old with autism. I became a sahm so take care of my babies even though my oldest is in school now. My husband told me he wanted to do all the working for me stay home. After our second baby our marriage went down hill. I'll ask for money for an outfit or something he'll tell me no he's broke but then I'll see reciepts where he went out to eat with his friends. He started calling me ugly names fat, bitch, hoe, I mean just nasty names. He told me I'm a fat bitch who sits on her ass all day and to get on his level go get a job. He works 2 jobs I was adopted I literally have nobody but him he won't quit the night one so I can work because he didn't sign up to be a stay at home dad. He doesn't want me having a car. After giving birth he recorded me yelling at him and trying to get into my room because I was going thru ppd and I'm scared to get help I'm scared of losing my kids because it was so bad I went to therapy though with him and I'm better then ever but he still has the video and theatens me if I go to court hearing taking my kids from me because my son was in the video so he won't let me ask for money for spouse support or child support because he'll bring up the video and it's my fault I did go to therapy for a while after that. He told me since I don't have a job they won't let me keep them because I can't support them. I do get SSI of 750 a month that's about it. I'm stuck I just want to scream I just want this to be done but he's putting me thru hell