First of all, don't care too much about losing weight. Imagine your state after you have a good figure, and then keep that state, so you may want that state to be close. This is psychology.

Here's how to climb the stairs. There should be many opportunities to climb stairs when wandering between the dormitory and the classroom. We should cherish these opportunities.

Don't prepare too many snacks in the dormitory, it will stimulate you to eat.

Also, you can work hard with your roommates and let them supervise you. What you say always counts.

Don't eat snacks on the roadside around the school. Eating in the canteen will be more regular and help you control your diet in a planned way. If you can, you can just eat vegetables instead of staple food. This trick will definitely work, that is, you will stick to it! !