From the aspect of diet: the diet on campus is self-matched, so it is easy to eat whatever you want as long as you have money, which is absolutely impossible. At school, we should also pay attention to the collocation of multi-vegetarian and multi-bean products, eat less fried and high-fat foods, don't order midnight snack at night, and put an end to obesity from the source, but we must eat three meals a day, otherwise it will be bad for our health.
From the aspect of action: it is a waste of money not to go to the gym to exercise. Long-distance running is a good way to lose fat, but it takes a lot of willpower to stick to it. It's no use running for only a day or two. Exercise needs persistence to be effective. Long-distance running exercises the whole body, and aerobic exercise enhances heart and lung function, which is very good for the body. Once you can persist, it will definitely benefit you for life. There are many examples of my senior friend running late to lose weight. Don't say, "Forget it today and run tomorrow." There is a first time, there is a second time, and then it is forgotten.
In addition, you can go swimming, do aerobic exercise, exercise your whole body and exercise your vital capacity. It's also a good idea, a little more dangerous than long-distance running, but the effect is definitely there.
Last word of advice: losing weight mainly depends on your willpower. As long as you keep exercising and eat healthily, you will lose weight successfully. On the contrary, if you always give up halfway, then any kind of exercise is useless.