As a small part of a larger change in my personal life, I've also decided to delete my facebook account as well as Linkedin and other social media accounts. Basically I was in the need for a mental break.
Too much mental stimulation, specially from things that don't have much interest, was making my mind very shallow and easily distracted. I still read a lot of HN, but I'm trying to reduce my internet leisure time to 1 hour per day at most.
Since now I easily get bored, I started doing some sudokus (on a paper book) and I am finally starting to feel my mind a little bit sharper. I also feel the need to find more productive things to pass the time. For instance, three days ago I explored, quite in depth, C pointers and pointer arithmetic because of the first comment on this hn thread [0]. Also, yesterday, starting on the hn thread on microkernels [1], I started reading about these "alternative" OSes (Minix, HelenOS, etc), checked the source code of some of them, and eventually played a bit with nasm assembler and made a 32 bit and 64 bit "hello world" app for MacOS. These are things that I wouldn't learn and do if I was being mentally "stimulated" by facebook and that kind of things.
However, one positive thing about facebook is that those friends that used to send emails with funny memes, videos and what else, now use facebook for that. As a result, my email inbox is now much cleaner and calmer.. :)
[0] https://news.ycombinator.com/item?id=15198093
[1] https://news.ycombinator.com/item?id=15216615