The Most Beautiful Girl Ever

Kelly was born under a curse. When she turns 18, her body will be forever cursed. As of right now, at age 13, she is the most beautiful girl in her school, but thinks she's ugly. But when she turns eighteen, she will turn ugly, but think that she is the most beautiful girl ever. She can reverse this curse by climbing the tallest mountain ever and battle the one that cursed her. Will she win the battle?