Actually, it's time for you to grow up. If you lose weight, you really need to stick to it for a long time! What you need to do: run for 40 minutes to 2 hours every morning, and go jogging at night 1 hour or so. Watch your diet. No snacks. Something fried. Besides basic daily nutrition, you can also eat some cucumbers, tomatoes and celery. You can't eat staple food after 7 pm. You can't have dinner at night. I 155cm, weigh 4 1kg, and have no meat on my stomach! Praise yourself for your good figure! I usually work in class, have no time to exercise, and like to eat. Since you can't control your mouth, let it eat! When I want to eat, I usually eat two cucumbers a day. A tomato. This depends on my personal preference. I prefer to eat cucumbers.