Exercise more, mainly running, starting at 10 km every day, in the morning and evening. Pay more attention to your diet and eat less rice. White meat, such as fish, chicken and so on. Don't eat red meat, pork or beef. Don't drink, quench your thirst with boiling water or tea. Every meal is halved according to the current food intake. If you are still hungry, you can eat fruit instead.

There is no need to go to the gym. Gyms are mainly for profit. Without a special coach, you can't get good grades at all. And many coaches in the gym don't know how to lose weight. They just make some people with good figure look like themselves. You just need to keep running. Run for a month 10 km, increase the amount to 20 km, and then stick to it.