Do you live on campus? If you live on campus, you can go running on the playground with your classmates one hour after dinner every night. A friend of mine ran for two years in college and went there every day. He has a good figure. Just eat normally and don't overeat. You're a sophomore, and you're still growing.

If you don't live in school, go home every night. If you are close to home, you can run home. If you are far away, you can ride a bike. Exercise every day can definitely lose weight.

In fact, the key to losing weight is not planning, but it is also necessary to have a plan. It is important to persist, otherwise everything will be in vain.