I can understand your feeling. In high school, I was also worried about my obesity. But when I went to college, I lost weight. I should eat more fruit and less rice. Any weight loss varies from person to person, so don't pursue speed too much. Eat normally in the morning, eat 8 minutes full for lunch, don't eat dinner if you are not hungry, and eat some fruits and vegetables if you are hungry. Don't eat for 3 hours before going to bed. Eat more fruits and vegetables. Such as tomatoes, apples and cucumbers. You must persevere.