Falsely accused of sexual misconduct on social media what can I do

Okay, it’s not something that’s easy for me to talk about but the situation goes like this. A few years back I was falsely accused of blackmailing, rape and many more disgusting things by a girl and her friends on social media. The girl in question was a friend of a friend. We had an argument because she kept annoying and disrespecting me for no real reason and exchanging some heated words. I ended up calling her a b-word. She didn’t take it well and started going mad, she was saying that she would ruin my reputation and my life ( i have an audio recording of her saying that) She and her friends then proceeded to go on snapchat and post stories saying I was talking to her 12 year old sister (I was 17 at the time) or that I was blackmailing to get pictures of her, that I sexually assaulted one of them etc all of which is not true, I had not even ever kissed a girl at the time. It went out of proportion with people reposting, I lost many friends, got death threats and my home address leaked, spit on and slapped many times in public, etc my life really went downhill from there and I got very depressed and suicidal. I’m doing better now but there consequences still haunt me. I tried fixing the situation on my own but never really talked about it to someone. What can I do?