Sounds like new age stoicism? Roman philosophers, 2000 years ago, were teaching us to curb our desires for they ultimately lead to dissapointment when things don't work out.
The Enchiridion of Epictetus is a good place to start. You'll also learn how to feel when your favorite mug drops, or when a friend pokes your eye in a wrestling match - spoiler: the answer is not giving it a fuck (for lack of a better term).
"The desire for more positive experience is in itself a negative experience. And, paradoxically, the acceptance of one's negative experience is itself a positive experience."
from "The Subtle Art Of Not Giving A Fuck" by Mark Mason