How I did it: There was really only one person bringing negativity into my life. She was causing drama left and right, and I was sick of it. So what did I do? I deleted her from facebook. It dounds childish, I know, but I've seen her totally spaz out at people before because there had been a 'glitch' and they were no longer friends on facebook. So, 2 of my friends and I decided to go to the apple store while we were shopping and just delete her from facebook. Guess what? She's barely talked to me since.
Resources: The apple store ;)