It seems to me to boil down to the saying, "Happiness isn't having what you want, it's wanting what you've got."
However, that doesn't address whether what you've got is good for you, you know? And what if you *don't know* if what you've got is good for you, or if you could do/deserve better, or if it could improve...?
I think that lack of surety is the bane of happiness, my happiness anyways. Once I know what I want, I will move heaven and hell to get it (being a very determined person). Even that effort makes me happy and fulfilled, knowing I'm doing everything I possibly can to achieve whatever it is, even if I haven't gotten there yet (hello, daily exercize!).
But not knowing and just floating around in a puddle of indecisiveness is horrible to me. I tend to get obsessive, constantly worrying at issues like a terrier, driving myself and everyone around me insane, until I get a resolution I can live with.
That, and not being able to *do* for others the way I would like. But I can't have tremendous drive for everyone, they have to have it for themselves. I can help them, then.
Huh. My input seems to be more about *un*happiness than happiness.