There is a little thing you can teach yourself that seems small but can scale up to shifting paradigms:

If you personally do not like something (food, music, a film), see if you can appreciate it on a secondary level.
This means knowing about a thing cause friends like it, or just for general education.

This helps our brains overcome zero-sum games and competition think that is dragging humanity down.

Appreciating things on a secondary level helps you connect with others and cooperate.

The bouncer squints skeptically at the ID. "This really you?" he asks, half-jokingly.

"Well, no, it's not," Magritte says, "it's a representation of--"