No. Dieting is not suited for kids at all, or anyone for that matter.
You need to make a change in your lifestyle. Eat healthy food, eat when you're hungry. Don't limit yourself. Exercise thirty minutes a day. That could be playing tag with friends, swimming, riding a bike, anything. It doesn't have to be the stereotypical workout you would think of. It really shouldn't be. It's about living life loving yourself and feeling good, not worrying or dieting.
You should consult your doctor and see if it's possible to get the help of a nutritionist if you feel it is a big issue. It is always wise to seek medical assistance in situations pertaining to weight and weight loss to make sure it is done safely.
hmm increasing are we?
you get 5 because Zayn left 1D :D
Lol its light green too xD