Can you change what grade you are in

This changes depending on your state or school, but usually no unless certain requirements are met. Either you’re a gifted student who is way above your class education wise, or you were held back/older than your classmates and wish to graduate with your original class. Even in that case, you would have to put in a decent amount of work and get enough credits/accommodations to show that you are on the same level as the grade you wish to change to.

Interest on the borrowed funds.