Domestic violence

Hi, I am 30 yr old female who is single and only bread earner of the family. I live in a family of 4, myself inculding my parents and younger sister. My father was a driver who took care of the family till my graduation and soon after that I started working and he used to never stick on to any work slowly he stopped taking care of the family and all responsibilites fell on my head. Due to some debts we had to undergo lots of financial crisis and my sister could not get educated. We had to stop her education when she was studying 4th std. During our difficult times my father left us and when he comes back he used to literally abuse all 3 of us and physically torture us. He tried to kill us as well. And after few yrs he completely stopped working and used to be at home daily abusing us and torturing us. After that we thought once he starts working we will have some peace atleast. But even then he keeps torturing us for money and keep abusing us. Torture us mentally and physically. My mother is scared to take this to next level as she has 2 daughters who are still not married. We dont have any background support from family and friends. Taking this as advantage my father tortures us a lot. We don't need anything from him except freedom from this guy.