UGH. In a most embarrassing move, i have been misusing my palomino sharpener since the day i got it. never read the instructions for hole #1 vs hole #2 (bring on the puns). i've totally worn down the blade and have bought a new sharpener.
They won't let you change it, but as @SimiKaur said it's largely up to the proctor's discretion whether to let you in or not. Assuming the picture still looks like you, you should be fine (unless the proctor is a major a-hole).