Math Midterm Tomorrow! NEED ANSWER ASAP?

Okay so i'm an 8th grader in an honors algebra cl and i have a pretty big math midterm tomorrow. i know about 2/3 of the content well but the last 1/3 i'm shady. i have my book to study with and a my notes. i have trouble memorizing formulas and i always procrastinate. any study strategies to help it stick to me for tomorrow? i'm aiming to get at least a C-