How to survive in AOTG School! (Hiccelsa vs Jelsa)

This book is about a group of friends, Merida, Hiccup, Jack and Rapunzel. They are the coolest in the school, they know magic, they do jokes, etc. until this girl... Elsa, moves in town and Jack and Hiccup fall in love with her.
She will need to know how to survive in this extreme school, the bullies, the nerds, the populars, the best, and worst, people around. She will also need to avoid this Merida, 'cause her group of cool friends can separate (and her heart can break) because of the love triangle. She must conceal her feelings, and she must hide her secret.