Make-up sleep: Try to get enough sleep the next day, which can help you recover your physical and mental state.

Replenish water: Keeping your body hydrated can help you stay awake and alert. Drinking enough water or other liquids, such as tea or juice, can help you recover.

Exercise: Mild aerobic exercise can increase the body's oxygen intake, thus improving mental state and attention.

Eat healthy food: Choose foods rich in vitamins and minerals, such as fresh fruits, vegetables and whole wheat bread, which can help you replenish energy and restore your body function.

Meditation and deep breathing: Meditation and deep breathing can help you relax your body and brain and reduce fatigue and anxiety.

Take a short break: concentrate for a while and then take a few minutes off, which can help you stay awake and alert.

Please note that these methods may be helpful, but the best way is to avoid staying up late as much as possible to ensure that the body and brain get enough rest.