Additionally, I think the obsession over "intelligence" and "natural ability" is vastly overstated, in general. It absolutely helps, and it compounds, to be smart, but a person who "works hard" is infinitely more valuable to their colleagues than a smart person who doesn't, and tries to rely on raw intellect.
My problem, and I wonder if others have this issue as well, is how hard it is to know these things intellectually, and also apply them to my life. I just cannot, for the life of me, maintain a "work hard" mindset. I'm still trying, but I very often fail at this, and its frustrating because I know how valuable it is to being good at what I do.