17 years old 168kg, you are really a little fat. You're young, and it's just inconvenient to gain weight. When you get to work, you will find it difficult to find a job. When you get married, the standard of choosing a spouse will be much lower. So you must lose weight. If you want to lose weight, you must have determination. First, you should make a plan for yourself, insist on aerobic or anaerobic exercise every day, and exercise harder. Secondly, you should focus on your diet. Don't eat sweets or eat less sweets, don't drink carbonated drinks, don't eat fried foods, and set a certain amount for yourself every meal. In fact, the human body's appetite per meal every day is enough for the human body, so arrange the diet reasonably, eat less and eat more meals, reduce calories, get ready for the next weighing scale, weigh yourself at any time, and lose 2 ounces every day, which is 6 pounds in January. That's what I used for a year.