Ok, so with my GCSEs starting next week... I decided I would take a break off Twitter or Facebook until after my exams...
But, I jeep going notifications on my phone from comments and tags which I ignore but only to a limit where its driving me crazy!
In a way you could say I'm an addict... Help? Please? Kinda... :P
In reality so close to the start of the exams it's not worth trying to get 'un-addicted' because the problem won't be solved in time. You just need to download an internet timer like a pomodoro timer and just work to that and force yourself to do it. If you're intent of getting off FB do it after exams.