I recommend the following methods:

1, eat

Three meals a day should be quantified regularly, without interruption, and the diet should be regular to ensure the quality of catering.

For example. Breakfast includes milk, eggs, beef and vegetables.

Vegetable soup for lunch and dinner.

Step 2 sleep

Have a sleep guarantee and don't stay up late. Usually thin all night. It's really hard.

Step 3 exercise

Exercise reasonably, as long as you are not tired, and the intensity is moderate within 1 hour. The purpose is to increase consumption and appetite through exercise.