There is nothing wrong with your diet. Eat a little in the morning, eat some rice at noon (but one third less than before), and then stop eating at night. Be careful not to eat snacks during the period. Lunch can be based on corn and vegetable crude fiber, which can make you feel full and lose weight. Generally, exercise and dieting combine to consume fat, and then swim for more than an hour every day. Swimming can not only make you lose weight, but also keep fit.
Wish you success! ! !