Living on campus must be nutritious first, and losing weight cannot be without nutrition. Have some porridge buns for breakfast. Lunch is mainly vegetarian, called vegetarian noodles, and eat some fish and shrimp in the evening. I don't know where you come from, and I don't know your family conditions. In short, vegetarianism is just right, a lot of chicken and fish, fat to the edge, not enough to eat or hungry. You won't get fat as long as you do it. If you want to lose weight, run every day.