Bully men

Been with this guy since I was 14 I'm now 31 we have 3 children together...ocer the years we've had up and many downs but the final straw came...the other night we were toy fighting and it got a bit out of hand literally he broke my hand in 3 places that night I went to be in a lot of pain but as it was late I thought I will go straight to bed and see if I could sleep the pain off but that didn't work next morning I went to hospital and they verified I had broke my hand and needed to be casted I phoned him to tell him thinking he would be sympathetic but all I got was laughing and a non apologetic sorry any way I went home and still tried to do my jobs of being a mother which is hard as the youngest is 2 years and hard work I can't even change her nappy or pick her up so that night I was expecting him to take over and let me rest as id still not had any pain relief he came in told me to deal with it and that he was going out for the night I pleaded for him to stay and do his daddy duties but no he went and he was gone all night then this morning turns up and says he's spending his day hung over watching Netflix and that I had to go upstairs out the way with my 2 and 10 year old so alday cook upstairs with nothing to do...after half the day had passed baby was clearly getting irritated being stuck upstairs and because I couldn't calm her down he stoned up the stair and screamed in my face "What have you done to her " I was livid so I finally snapped...how dare he think I'd ever do anything to any of my children so I screamed for he to move away and go but as I turned my bk he went full force through me to the bed and punched me in my head my broken arm and legs he's 6ft 4 and 16 stone against me at 5ft3 and 8 stone and he's 10 times stronger....I thought it wasn't going to end then he let go and stormed off down the stairs I'm now sat on my own locked away in my room ...thing is no one around me understands because this has happen a few times before so because I'm scared.... it's easy to say "just leave" or "phone the police" but he's made it very clear if I did worse would happen I've lost all my friends and my mum I'm at the stage of thinking is there any point if me being here anymore ??? not like I'd be missed no one would probably notice anyway 😢 fed up is not the word I HATE my life !!!