Abusive ex

I'm trying to leave my abusive ex but I'm not sure what to do. We live together with our two daughters. His anger is getting worse he punched holes in two of our doors. He poured a drink on my head right in front of our daughter then acts like it's no big deal. He calls me slut whore cunt and I'm down to 100 pounds from 120 I'm miserable but when I try to leave he manipulates me and says things like your breaking up the family and so on. I don't have anywhere else to go for now. I know this is super toxic but I just need reassurance he makes me doubt myself somwtimes. Any advice would be appreciated.