If your desire is a 10 but your self-esteem is a 5, you'll never perform at the level of a 10. You'll perform as a 5 or lower. People are ever able to outperform their self-image.
Talent is a gift, but our character is a choice. Talent is natural ability, our gift from God, but we have the power to determine our character. That power rests on a foundation consisting of the choices we make in life. And those choices almost always dictate the amount of trust others have in us, and to what level of leadership we rise.