Your skin is getting worse first because of lack of sleep, which leads to dull skin. In addition, due to insufficient conditioning in the past, your recovery is also very slow. Maybe you haven't recovered yet, and you'll have to stay up late next time. If this cycle goes on, your skin will be dull forever.
I think instead of buying all kinds of cosmetics and skin care products, it is better to take care of your skin through health preservation. For example, I drink a cup of honey (pure and super sweet), a cup of tremella soup and a cup of soybean milk every day. When eating snacks, I often patronize fruit stalls such as apples, bananas and pineapples. This habit has followed me for four years. In fact, as long as you persist every day and persist for half a year, you will have obvious effects and your skin will become moist and reddish. If you persist, your skin will create a pink effect and stay up late occasionally. Don't be afraid of trouble. When you stick to it for half a month every day, it will become a habit in the future, just like brushing your teeth every day, and you don't feel redundant at all.