You could have multiple, but is your biggest motivator in life?
Advancement : having a new goal and seeing yourself succeed. Managing to get that new promotion or meeting a new dead line, etc.
Madness : Having a new enemy/target to face, a new competition to win at, etc. You want to be the best at what you do and be better than anyone else.
Individuality : you're motivated by your "future life" or how your life could be like. Maybe you want safety and some good ol' recognition.
Purpose : wanting to be in the history books and written about, maybe by changing the world or by helping others.
I was reading "Your Next Five Moves" by Patrick Bet David (& Greg Dinkin) recently. one of the things the book talks about is the different types of motivation, Hench the question.