I want to lose weight I want to be skinny I want to lose 40 to 50 pounds

You answered your own question.. . "im not chubby but im not skinny". If you are not chubby and you are not skinny, then you must be "Just Right"!

You are only 11 and your body is going through changes. Just try to eat healthy foods and keep active. Think about being healthy, not how skinny you would like to be. Being too skinny can be unhealthy. Try not to compare yourself to others. Don't worry about what others think of you, it is none of your business!

Hope this helps some. Good luck!