Harry Potter and the Gauntlet of High School

In an AU world where Voldemort was defeated in the First Wizarding War, Lily and James travel the world. When Harry turns 14, they decide to move back to England to give him the full Hogwarts experience. However, Harry finds that high school becomes a bit more complicated when he's named the 4th champion in a tournament with only 3 schools. Inspired by the film "Mean Girls".