These things bring you to reality as to how fragile you are at the same moment you are doing something that nobody else is able to do. The same moment that you are seen as the best the fastest and somebody that cannot be touched you are enormously fragile.
A person who doubts himself is like a man who would enlist in the ranks of his enemies and bear arms agains himself. He makes his failure certain by himself being the first person to be convinced of it.