Keeping up my Knowledge

In school I struggle to keep all A's on my report card. I dont want to take anything less than that, but for some reason I always get one B in a class, and it would be an eighty-eight or eighty-nine ( you couldn't have just rounded?) I am the type of person who strives for what I want and wont stop until I get it. This quality will help me in life because it would help me to keep moving foward. I want to have a high Grade Point Average so i will be able to get into the colleges of my dreams. My knowledge is very important to me and I take pride in it.