The first commentator is right. I don't know your height or your activity level. Use the tools on this app. They give you lots of GOOD advice. Enter your current stats honestly in the settings.
The only healthy way to lose weight is slowly; otherwise it just comes back. And especially when you're young and still developing, you don't want to deprive yourself of nutrients. Slow down, do some reading on nutrition, learn how to eat properly, and do it right.