Can't say I relate to all of those but offhand:
1. Being able to make a number of dumb purchases and it absolutely does not hurt me. No paycheck-to-paycheck life.
2. The first time my girl told her friends about something we were doing and they approved.
3. Being able to take my whole family out to dinner on me to a not-cheap spot.
4. Hitting missionary or prone bone and knowing I don't have to pull out because I am in a committed relationship

nuts be gawd tier.
5. Becoming an authority at something and seeing people respect it.