If you want to know how to go on a diet, eat healthy foods. Go to a local grocery store and buy some healthy foods. Like frozen bags of vegetables, cans of vegetables, cans of fruits, fresh and raw fruits and vegetables. Buy vegetables to go with making a submarine sandwich. Also, drink 8 cups of water. Use a 16 oz. or 24.oz to drink water. Eat the purchased fruits and vegetables weekly and you should lose some weight. When I was a kid, I didn't buy much fruits and vegetables because I always wanted to eat candy and junkfood.