The way I see it, you became good at math the same way a musician gets to Carnegie Hall - practice, practice, practice.
For some reason - possibly due to the disproportionately young age of mathematicians - there's a prevailing idea that math is an innate talent, something which you are either born with, or you aren't. I strongly disagree with that notion - putting in that 10,000 hours can improve one's mathematical abilities.
