My BFF is an Alien (Book 5‪)‬

Primed to become Viridis’s future leader, the young Octavia Wuen must prove she is up to the task by winning the planet’s biggest event—the Quaturs Games. She aligns with others like herself, who have the gift of superpowers, but these new alliances are tested when the Games take a bad turn and the arrival of hostile beings threatens the planet’s survival.