I was close to deleting my Facebook account when I discovered the News Feed Eradicator[1]. This way I can still use messages, groups, events, etc. without having to experience the dreaded news feed. It really improved my quality of life.
Another major step I took was to stop posting. That way I had no expectations of feedback and logged in far less in general.
[1] https://chrome.google.com/webstore/detail/news-feed-eradicat...