My own thought about happiness, or the pursuit of of, is that it is that the shitty mortar that helps build delusions and delusions are a gateway to suffering etc.
One should look to be satisfied. And I do mean it in the vain sense of the word. It's much more grounding.
Well, what I've observed is we each get what we settle for. I've know many genuinely happy people, and many uncontent have confessed it's their fault they are unsatisfied.