Not realizing what you want is a problem of knowledge. Not pursuing what you want is a problem of motivation. Not achieving what you want is a problem of persistence.
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.