Going to the gym to lose weight is useful, but it takes a long time, and it takes more than 30 minutes every day, because after more than 30 minutes, you will definitely sweat, you can run, and you can also practice aerobics with your coach. It's best to eat less dinner. It is best not to eat staple food but to eat low-calorie vegetables and fruits, and the effect will be faster. You must persist, and it will certainly have an effect. I hope you can lose weight soon!