[victoriasun]

I quit. I'm an introvert :)

a) You can quit Facebook without quitting Messenger. I did this for a while before pulling the plug immediately.

b) Honestly, quitting Facebook made it pretty clear to me what social circle I (and those within it) seriously wanted to maintain, and who didn't exist in that. This is not to shade on the people outside of this circle, by the way! We only have a limited number of seats at our proverbial table. My closest friends quickly switched to SMS for me. I have more time for them now that my Messenger list isn't filled with people for whom I only have a vague relationship with (this is also more of an indicator of the type of friends I had on Facebook, which may not apply to you).

c) Depends on what kind of events you like, but I've found text/mailing lists/curated apps to be more helpful than Facebook's deluge of events. I do get invited to less birthday parties, but I've never enjoyed those anyways. I much prefer an intimate dinner over a large group gathering.