How can I lose this weight? Am I overweight for my age?

Look I've tried diets and I've tried my best excercising but I get tired too easily. Diets are just way too hard and I can't stop myself from eating lots of rice and I have a week and a half before school starts. I wish I had a gym near me but it's way too far and I'm too young. Someone help me lose this weight. I've tried everything