I used to be like you, living my life based on external beliefs of what I "should" do. Once I realized that I didn't have to all my stress disappeared and I've never been happier.
There is a deep irony in an argument that pushes a pro-socializing view in a black-and-white, authoritarian way, "shoulding" statements, shaming tactics. It's actually anti-social, and the authors of the cited paper probably would not agree.
People told me I "should" exercise for years and I didn't, but when I did I suddenly got a lot less depressed and my life turned around for the better so I'm going to continue to trust other people