Because I tried to everything possible to become the best player in the world? Do I believe steroids and growth hormones helped me achieve that? Yes. Were there a lot of other players doing it that I had to compete against? Yes.
“All men dream, but not equally. Those who dream by night in the dusty recesses of their minds, wake in the day to find that it was vanity: but the dreamers of the day are dangerous men, for they may act on their dreams with open eyes, to make them possible.”