Are there any books about the importance of participating in life instead of analysing what everyone else is doing?

Perks of Being a Wallflower was my first thought but it’s not quite right.

Something about, kind of, stop complaining about what other people are doing, stop feeling pity and sympathy for how other people are living, stop analysing what people might be thinking, stop just responding to other peoples lives positively or negatively, and to just live your own life and be part of it all instead.