You lack protein, so you should eat more eggs, fish, fruits and vegetables.

I will arrange it for you:

Breakfast: two eggs, one millet porridge and a bag of breakfast milk.

Noon: steamed bread and vegetables (4 steamed buns)

Evening: Steamed bread and pasta are the main products.

Weekly: Eat drumsticks, beef and fish once (if possible).

Eat less snacks and buy some fruits, drinks and things with high sugar content.