I have Facebook mastered and it works perfectly!
First I unfriended everyone that hypothetically wouldn't come to my funeral.
That got it down from 300 to about 35 people.
I then unfollowed everyone, so I'm still their friend but don't see any updates.
I then I joined Facebook groups of things I like, history, art, animals, travel, feminist groups, politics etc things that have fascinating articles and interesting quotes and imagery.
I then told everyone 'I don't really do Facebook anymore, if you tag me I will see it but don't look on it everyday".
So now I can go on it read such interesting articles and features it's brilliant. Probably go on it now for about 1-2 hours a week. Have no fomo as don't see what everyone is doing, and when I see my friends in person and they say "I went here or there" I'm really interested as I haven't seen it on Facebook first.