The 12-things happy people do differently. TL;DR
Well, not exactly, but... here's an acronym that condenses it nicely:
Persevere - have goals and stick to them
Socialise - say g'day
You vs You - Compare only to an earlier you
CANI! - Constant and Never-ending Improvement (optimistic x)
Health - Body, Mind and Soul
Enjoy - Smile
Deal - Build a bridge; get over it
Kind - Be it
Revere - Live spiritually
Absolve - Forgive and let go
Flow - Get into it as often as you can
Thank you - Say it; mean it.
I think there's something in there for all of us, don't you?