I have quit various social media outlets at different points in my life. When I deleted my facebook account, I found it easier to avoid partisan conversation and meaningless memes aimed at sparking controvery.
This reduced my anxiety about the state of the country, but I also felt some isolation. I use social media to share pictures and updates about my family and depend on it to provide contact with some people who live far away. The best solution for me was to delete any friends or organizations that only post news stories, and only use social media to share personal stories and pictures.