I quit Facebook for 6 months and I felt that a big burden was dropped off my shoulders. I found myself reading more books and frequenting a lot of interesting blogs and discussions. I also focused on personal projects without the need of social validation. Then I reactivated it for a week to give sign of life to my "friends", but felt a pressure to be active, to post and respond to messages. I had gone back to checking my Facebook as my first tab and felt suffocated by the need to always "keep up." I finally decided to deactivate it once for all and never looked back. I personally think that instant messaging is the sweet spot, allowing me to communicate with friends I actually care about, without the need to rack up likes and keep up with the joneses.