In fact it's just the opposite. If you go down the rabbit hole far enough (which we should) none of us truly chooses anything.

We don't choose our parents, our childhood environment or social network, our genes, or brains, or our intelligence, We don't even really choose our thoughts. Nor do we choose how much grit or drive we have, because those derive from those other things.

People who are happy are lucky, and people who are sad or downtrodden are unlucky. It's really as simple as that.