I used biomechanics to save time when I was competing.
Both parents supported my becoming a world class athlete.
One of my major competitors was Harold Smith. Smith beat me in 1977. I was loafing during that competition.
You have to have already convinced yourself that you are going to win no matter what other influences are.
I was always a mean and lean athlete - not tall - not large.
Concentration is why some athletes are better than others. You develop that concentration in training and concentrate in a meet.