I did this also. Most successful "be on facebook but not sucked in" method I've ever done.

I started just by unfollowing literally everyone. I have since readded my immediate family and a couple close friends. I find this doesn't change things, and it's more automatic than remembering to check their pages. They don't post much.

Finally, when visiting Munich I joined a local group. Didn't unsubscribe, so I still see posts. This is sort of handy: if you have nothing followed, facebook will dresge up random stuff such as suggested friends.

With a single group you auto ignore, facebook is content and just shows that. (But beneath family, if there are any posts from them)