Naval on Joe Rogan, starting at about 24:00.
Desire is a contract you make with yourself to be unhappy until you get what you want.
If you are unhappy, look for the underlying desire that is not being fulfilled.
You will have many desires. And you probably do. It’s your destiny as a mammal. About trivial things: the temperature, the flavor of your food, etc.
Don’t have too many desires. Don’t pick them up unconsciously or randomly. (Listening to media, listening or observing others. I am soooo guilty of this — believing or envying the last thing I see or hear.)
Pick one overwhelming desire. It is OK to suffer for that. For all of the others, let them go so you can be calm and peaceful. Because then you can perform better because you aren’t riled up over useless bullshit.
A calm relaxed person makes better decisions. Life is highly leveraged so the impact of a slightly better judgment can be huge.