According to [0] the quote is attributed to Rabbi Hyman Schachtel.
According to [1] the quote is by Garth Brooks.
I wonder which one is right.
[0] - https://www.goodreads.com/quotes/461438-happiness-is-not-hav...
[1] - https://taddasfitness.com/blog/100932/Happiness-isn-t-having...