For people who grew up before the Internet, the idea of needing to share everything with everyone you know isn't a necessity. Some things were better before the Internet. My real-world social life improved after I left Facebook. The quality of the information that enters my mind on a daily basis also improved. I don't read timelines or experience life by constantly thinking about whether I should post the current moment online. There are other ways to stay in touch with people.

I recommend Digital Minimalism.

http://www.calnewport.com/books/digital-minimalism/