First, eat slowly. With my observation, many fat people's speed of
eating are faster than normal people. Eating slowly can let you feel your
stomach is full, and you don't want to anything else in that moment. Second, do
more exercises. Third, control things you eat. If you want to lose weight, you
need to sacrifice some food you like to eat, such like candy, cake, fried
chicken, and any other high calorie food.
Many people want to lose weight, but most of them don't have
determination to do it. If you want to lose weight, you need to have
determination first. Then, I believe you can do it in the future.