If you're not trying or putting effort in- for yourself, who's going to & how are you expecting to get it done?
Be your best cheerleader, if you have others who are cheerleaders for you, that's great! But you have to do it for yourself so you stay on your OWN course.
It helps you to know you're truly there for yourself and dependent on the least amount of outside sources as possible. Building trust with yourself helps you gain confidence that can be humble.