I recently went through everyone I’m friends with on Facebook, and every Page I like, and “unfollowed” them. It was a few months ago now so I can’t remember exactly how I did it, but it’s not as lengthy a process as it sounds.
Now my feed is completely blank, unless I post something myself and then that sticks around for a week or so. My only interactions are via Messenger, posts that specifically tag me, or by searching people out.
I’ve found this to be a really good way to distance myself from the parts of Facebook that make you feel bad — I have to actively search for people I want to read updates from and go to their timelines (and I do this very rarely) — but still get the benefits. To me those are still being able stay in touch via messenger, get invites to birthday parties etc, and post the odd thing myself — and, as a marketing manager, still fulfil professional duties without getting a pretentious pseudonym account. I recommend it.