You have to know what is right for you and go after it regardless of what others say.
No matter how bad it is, or how bad it gets; I'm going to make it.
Provide more service than what you get paid for
We all need some form of deeply rooted, powerful motivation / it empowers us to overcome obstacles so we can live our dreams.
No one gets out of the game of life alive. You either die in the bleachers, or on the field. So, you might as well play out on the field, and go for it.
As you reach your goals, set new ones. That is how you grow and become a more powerful person.