I need help on how to get revenge on my back stabbing best friend who ruined my life.?

now this is going to be long but please read thru its very sad i used to be friends with this girl and i thought she was a really good friend and everything and whenever i had plans with another friend she would always make me cancel them and there was this guy that i have liked since the fifth grade and im a freshman in high school now and i still like him and she liked him to so we made a promise that neither of us would get him cause he liked both of us a little and so she comes over and is telling me that she went to his house the previous night and telling me everything that she did and it rele made me mad but i didnt know what to say about it so i just decided to forget about it and recently i had a friend stay and she asked this kid who was best friends with the one kid that i was just talking about and his nicknames gonna be hoebag so she asked this kid if he liked her cause she liked him to and he said yea and she was like as a girlfriend and he was like no she had with hoebag and i started crying and way before tht she got me actually put on probation and house arrest cause she wanted to drive her moms car when she wasnt home and we did and she crashed it and im only 14 and im stupid but it was her idea and im still on probation and she isnt and it was mostly her fault and she keeps telling poeple these lies about me and now tons of people want to beat me up of course i aint scared of them cause i dnt take peoples crap im a fighter and all her friends are small and im small but i and like rele mean but i was never mean to her and i wuld fight her but i cant because im on probation and people say revenge isnt the answer but she seriously ruined my life because she got me put on probation and i wanted to go to the police academy but now idt tht i can because of tht so seriously tht ruined my life i am always a good person maybe not the nicest but i was never a bad kid and i used to smoke weed cause i was stupid but i quit and then when i became friends with her she got me to do them again im never doing them again tho and it makes me mad because i honestly dont think im tht ugly of a girl im 4 10 im almost 15 and i have black hair and everyoe says im prettier than her and not to sound self conceeded but i kind of think i am but everyone likes her cause she is super easy she used to live in kansas and she had with half the football team at her junior high and i know tht i am not innocent but i havent done close to what she has and she is a few months younger than i am and im not the type of person to talk crap but she is a slut and i told her tht to her face and about the hoebag guy she knew i was practically in love with him and yet she came to school one day and this was when me and her were like sisters and she came to school and showed me her neck and it was full of hickeys and then she pulled down her shirt and he chest was completely covered and she wouldnt tell me who is was from and then hoebag walked in and his neck was covered in hickeys too and so i went over to him and he was like rubbing right by his dinky dong thts what i call it haha i just made tht up and i was like pull down ur boxers and he was like what i was like to where i cant see it but i can see the part u were rubbing and he was like no and i was like yea and hes like fine and he had the biggest hickey ever now i know this is long but i just wanted to tell everyone details of what she did to me and she has done alot more than this but if anynoe has any ideas on revenge then please share it with me and thanks