“[Gatsby] stayed [in college] two weeks, dismayed at its ferocious indifference to the drums of his destiny, to destiny itself, and despising the janitor’s work with which he was to pay his way through.”
a
Gatsby’s shame of his janitorial work eventually fueled his college career.

b
Gatsby dropped out of college to pursue the destiny he believed he deserved.

c
Gatsby believed that his destiny would be positively determined by his education