Working hard is important, but there's something that matters even more. Believing in yourself. Think of it this way: Every great wizard in history has started out as nothing more than we are now. Students. If they can do it, why not us?
Shortly after his birth, Harry Potter's parents were murdered by the Dark Wizard, Lord Voldemort. Once he came of age, Harry started attending Hogwarts School of Witchcraft and Wizardry, where he learned to practice magic and realize his potential as a wizard with his friends, Ron Weasley and Hermione Granger. Harry finds out that his fate is tied to Voldemort and spends his school years fighting the villain's forces before facing off against the Dark Lord in a final battle.