Stopping staying up late does help reduce the problem, but it doesn't mean that you're completely free from breakouts. Staying up late will lead to an imbalance in the body's internal environment, affecting the normal metabolism and repair of the body, which will cause acne and other problems. However, the formation of acne is also affected by a variety of factors, such as diet, lifestyle Xi, endocrine, etc. 
After stopping staying up late, the body can get better rest and recovery, which can help alleviate the problem. Lack of sleep can lead to an increased inflammatory response within the body, and inflammation is a significant factor in the development of breakouts. Getting enough sleep can reduce inflammation, which can reduce the occurrence of breakouts. 
In addition, sleep deprivation can also affect the body's immune system, making it more susceptible to bacteria and viruses. When you stay up late, the oil secretion will also increase, which will also lead to the production of acne. Therefore, stopping staying up late can improve the condition, but it is not a complete guarantee that there will be no acne. 
To maintain your health, in addition to stopping staying up late, you also need to pay attention to your diet and lifestyle Xi habits. Eating too greasy, spicy, irritating, etc. can easily lead to ** problems. In addition, factors such as lack of attention to personal hygiene, improper use of cosmetics, etc., may also lead to the occurrence of acne. Therefore, to maintain the best health, it is necessary to manage a combination of factors. 
In conclusion, stopping staying up late does help reduce the problem, but it doesn't mean that you won't get acne at all. In order to maintain good health, it is also necessary to pay attention to the comprehensive management of various factors such as diet and Xi lifestyle habits.