I was assaulted and i want to sue them in civil court

I was invinted over to my male friends house. We went to eat and were drinking so he asked me to stay. I was asleep on the couch when I woke him up to banging on the door and screaming. He went to the door told me to stay there and he was talking with someone. She let her in the house and she asked me if i knew her. Which I don't. She grabbed me by my hair and started hitting me repeatedly in the face and and nose and arms. I got out. She tried to destroy my license plate. She had two other people with her. Another woman in the house who assisted her. I have to knots on my forehead. two black eyes and two fractures in my nose. I went to emergency that day. I want to civally sue him as well as her. He let her in to assault me. I am also visibly handicapped in my right arm. I have face discoloration know. And knots on my forehead. I don't sleep and I am paranoid of all situations now.