The happiest and most fulfilled people I know, have a pretty solid Ideas of things they enjoy or make them miserable, especially those things that are weird about themselves.
Clarity (and self acceptance) is a stepping stone for happiness.
Some examples from me.
Bad meals makes me very upset, I’d rather fast.
I don’t mind spending €300 for a fine dining meal (makes me happy) but hate spending on hotels.
Buying nice things makes me enjoy working more, creating a virtuous cycle.
I don’t mind working on holidays, weekends and lunchtime. I enjoy reading during office hours.
Pulling an all-nighter from time to time shuffle my routines positively
Music always makes my mood better, dancing too.
More often than not a walk is the best thing I can do, no matter other urgencies.
It’s fine to drop books you are not enjoying