My Happiness Project

I recently started reading The Happiness Project by Gretchen Rubin, and it really got me thinking.  Am I as happy as I could be?  What does that even look like?  How would I even know?  She quotes a woman named Collette: “What a wonderful life I’ve had!  If only I’d realized it earlier.”  Will that be me?  Will I look back when I’m 80 and realize I had been happy all along?