I'm sure there is often an element of luck involved, but without hard work, things usually won't get done.
"Hard work" is relative though. What someone may have to push themselves to do, another may find themselves doing it seemingly mindlessly like a dog chasing cars.
Have you ever seen what happens when you try to stop a workaholic from working? That's their idea of hard work.
In that sense, most of what constitutes you are your genetic lottery number mixed with reflecting on experiences you had very little if not any control over. I'd call more of it "luck" than people give credit before even going into purely deterministic themes.