Hate my past and always stressed?

Very long story...so i went out with this kid for just about two weeks before somehow a rumor started that i was cheating on him. I never was and then it was kind of my group against his. I then started to get involved with his ex girlfriend. We wound up fighting and the two of my friends who were better friends with him took his side. I was then walking through the mall since i had won the fight his friend and her friend also a girl..fought me i lost. Its been a big issue for just about four months. This is because it didn't only involve me but alot of people his friends her friends my friends it was like WW3. I lost people that i miss dearly but are assholes to me. I had made amends with 3 people that i was in this so called war with. 2 of them were jumped by my friends.I am traumatized by this whole experience and yet i am still hearing about it from my ex and two of my used to be close friends who are actually dating right now. Everyone knows what assholes the are to me they all are aware its ****** up, and they keep telling me too. Its caused me so much anxiety i sometimes just don't know my place anymore. Im lost and i have no place to be anymore. I miss how things used to be with my life but now its turning into torture..any ideas on how to relive my stress.make myself feel better...5 months and i thought this would be over by now...