One of my Secrets of Adulthood is: Most decisions don't require extensive research.
Act the way you WANT to feel.
I grasped two things: I wasn't as happy as I could be, and my life wasnt going to change unless I made it change.
Enthusiasm is a form of social courage.
Enthusiasm is more important to mastery than innate ability.
Studies show that aggressively expressing anger doesn't relieve anger but amplifies it. On the other hand, not expressing anger often allows it to disappear without leaving ugly traces.