Fight, fight, fight and more fight. If you have that burning desire in you, if you're just one of those guys that does not like losing and you fight and you fight and you fight, that's what makes you a good wrestler.
Your customers don't care about you. They don't care about your product or service. They care about themselves, their dreams, their goals. Now, they will care much more if you help them reach their goals, and to do that, you must understand their goals, as well as their needs and deepest desires.