Was i good enough?

In the city you are known as a strong and confident magic user who can use ice and fire magic. You were born with high potential and abilities that you used well to protect people. despite being so powerful the only one stronger than you is your older sister because she trains everyday to her limit and is skilled with using weapons, she loves you but doesn’t like showing it or being vulnerable with anyone. One day the City was attacked by a girl that tried to conquer it most of the magic users were defeated by her but you showed up and fought her. The battle was harsh and you used your most powerful attack to defeat her, thinking that she died she attacked from behind and injured you making you pass out. At that moment your sister appeared and killed her with ease