I was a heavy power user of Facebook for a couple of years, spending lots of time crafting witty status updates, getting into extensive arguments and discussions. It became like a game- I lived for the Likes and Shares and the red notification at the top of the screen.
I didn't realize how bad it was until I finally disengaged, deactivated my account. I've been off for about 2 months now and I feel like a different person. It feels vaguely like quitting smoking- you don't realize what "normal" is until you're away from it all.
The greatest thing is witnessing my thoughts enter a "longer wavelength" where I'm not so obsessed with being witty and clever all the time. I have more time and space to work on actual problems. It's great.
Hope this was useful or relevant to someone.