One of the many recent realizations that have helped me become happier in my life, is the concept that everyone is going through their own troubles and their own worries, and they have a whole life, most of which has absolutely nothing to do with me. The idea that people don't really even think of me near as much as I had considered, is very relieving. It allows me to focus on making adjustments on myself, and improving what I want to, without significantly impacting others.
As I've just discovered, there is a word for this - Sonder, which is defined as:
The profound, individual realization that each person you meet is living their own life, that each person has their own world fitted with their own personal worries, pains, pleasures, ambitions, routines, etc– The same as yourself, in a sense, but also as intricate and as different as could be imagined. “Sonder” is the idea that there are millions of stories happening all at once, around each other, oblivious and contained from one another.
This idea allows me to see people in an entirely different way. They are doing the best they can, sometimes in a completely different world than I live in. No one has things completely figured out, they make mistakes, get caught up in personal dramas, misunderstand things and keep on searching for that elusive 'happiness' that everyone seems to want.
I find that idea very freeing. I hope you do too.