Scared of society

I'm 19 right now. I dated a guy from my school for 3 years and we broke up last year.After that another guy said me that he likes me.This guy didn't have a good name in my school.Everyone used to call him a playboy,alcoholic etc.Even I knew about his behavior. But still I said "Yes" to him.I told him that let's keep it a secret.Because I was scared that my schoolmates would judge me for dating him.We were in a happy relationship for a couple of weeks.After that I was unhappy for his behavior. I didn't like the way he used to treat other girls.I wanted to breakup with him.But his friends used to call up to me and say please don't leave him.We can't lose our friend.He is harming himself etc(But actually he wasn't).So I used to get scared and forcefully stay with him.Once he came to my home when I was alone and we clicked few pictures at my home.We used to meet at the cafe etc.But still I was unhappy about this relationship .When I wanted to breakup he wouldn't let me go.But one fine Day I made up my mind and somehow broke up with him.After that he got really furious and starting telling everyone bad about me. He used to tell everyone that I am a S**t.He showed them the pictures we clicked in my home.So now everyone is assuming that I slept with him at My place.But actually we didn't. Now everyone is slutshaming me.Due to this I'm not able to go out of home.Now our school is over.We all are in college. But still I'm not able to get over this.I know I have made a lot of mistakes. But what can I do now.Pleasw help me