Reporting Rape

In 2014 I was raped. In 2015 my (now ex) boyfriend got into a bar fight with my rapist. I had to talk to the police and incidentally ended up reporting it. The night it happened I was in my room upstairs because I was too drunk. A guy at the party ended up coming into my room, getting in my bed, and raping me. I was too inebriated but ended up escaping to the other room to get help. He’d waited until everyone left the party and was asleep. The guy hid in the bathroom and my roommate/her bf kicked him out. He came back the next day and said he was sorry, and tried to make it into a joke (“so what do you want to like slap me?”). After 2015 I did not hear back from the police but my old roommate said the police contacted her and she told them everything she could remember about that night. My best friend was downstairs and they were talking about women who were too intoxicated getting Raped then he went upstairs and raped me. I reached up to choke which is how I got him off. I was so drunk I threw up in my bed and fell asleep on it. There were two direct witnesses, my roommate and her “bf” who invited my rapist over that night. I’d never met him before that. My dilemma is that I don’t have physical evidence, it’s been 10 years, and I’m fearful of going through all of this with no avail. I hadn’t been able to sleep through the night for almost 8 years without insomnia (just got on sedative medication about a year+ ago). Do I start by hiring a lawyer? Is it even possible to have him convicted at this point? It’s hard for me to think about it, let alone talk about it, without sobbing but I’m in a good enough place to do it I think. Should I just continue on with life?