I'll give you a solution
Grab a handful of red beans and a handful of coix seed every night and soak them in water. Cook in the morning 1 hour. Then put the red beans in a big bottle with water, drink them during the day, eat cooked red beans and barley at night, and eat some vegetables with high water content such as cucumbers and tomatoes. 2. Increase the intake of fiber vegetables and reduce the intake of high GI staple foods such as white rice, because the process of fat metabolism requires vitamins, and insufficient intake of vitamins and fiber will also lead to poor metabolism.
According to my method, but red bean soup should be drunk every day, and the amount of exercise you mentioned above should be reduced at least 10 kg every month.