Funny you made this post, maybe two weeks ago I deleted my Facebook app because of some problems with it.
When I was using Facebook it was just a site to look at memes (basically the bottom of any activity) . So when I deleted it I directed that waste of time to learning Italian and being more active on Steemit.
But in the end it all depends on what you will do when switching from social media ; you can find ways to be even less productive or find something actually beneficial to you.