Teen Rape Advice

Jillian
Hi my name is Jillian and I'm 16 years old and I need some advice really badly. Beware of this long post. 
When I was 15 I was kind of into this 17 year old guy and I started talking to him. He told me we could hang out after school and talk, maybe drive somewhere etc. Long story short I end up in his car, he pulls over and asks if I want to make out. Me being the naive girl I was, and being a girl who never had guys ask her that, I said yes and crawled in the back seat. We proceed to mad out of a bit but then he lays me down and says "are you sure you just wanna make out?" At this point I know I'm screwed. And I just say nothing and nod. I'm not about to put up a fight. I'm 5'2" and 90lbs. He doubled me in size pretty much. So I just let it happen. 
And here's what leads to a long process of abuse. 
In a sick and twisted way, I felt slightly loved by the whole thing, no other guys would have sex with me, so if it was offered I felt I should take it even if I don't want it, and so I continued to let it happen. He would make me send him extremely graphic and painful snapchat videos of me inserting large objects inside multiple ares of myself. And when I'd say no he'd get mad and talk about how "that other girl He's talking to did even more than that, so if I wanna be better than her I need to do what he says." Being insecure about myself, that could make me do just about anything.
One day I got into his car to do our regular thing. He'd lay me down, cover my face, do what he needed to, then dump me a block away from school so nobody would see me get out of his car. He asked me if I would do anal. And I said no, that it would hurt too bad. Less than 10 seconds later, he put it in my butt. I screamed and cried and told him to stop but he kept going for about 30 seconds claiming it was an accident. Then he flipped me over, had sex with me vaginally (didn't clean himself off first either, I had an infection for weeks, did I also mention he refuses to wear condoms and if you say no you get the same "other girls do that" speech.) After he finished I was shaking, crying, and scared. But I told nobody. 
After that I realized I needed to get him away. I tried making a fake boyfriend. He said "I own you even if you have a boyfriend. He'll leave you. I won't." I even faked a pregnancy to get him away. Which worked. When he found out I was "pregnant" he left me alone. It worked for a while I mean. When he found out I "miscarried" he tried to talk to me again. But by then I had an actual boyfriend so I didn't even respond. 
A few months later I find out that I was one of 4 girls he raped last year. And within the 7 weeks of school that have been in session he's attempted to rape another girl.  Ive told the school numerous times, but they never call him in, never file a report. "Because it didn't happen on campus." But now he's started to follow me. He comes into my classes, or stands in the doorways and stares at me. And he's starting to do the same to my friends. I'm scared. For myself and them. I have massive panic attacks every day because I live in a school where I can get suspended for wearing a tank top but a serial rapist doesn't get a day of detention. I'm scared. I feel hopeless and worthless. And with every new girl I hear this happen to, I feel like it's my fault for not stopping it.
What do I do. 
TLDR; school won't do anything about serial rapist.