1, which can be set to automatically turn off the phone at a certain time. 2. Put the phone away. 3. Change the theme or wallpaper of the phone and have a chat background (try to remind yourself to go to bed early where you see it). Being used to going to bed late and going to bed early won't help you. You should: Relaxing helps to improve the quality of sleep and help the brain fall asleep as soon as possible. Relaxation method: 1. Soak your feet with warm water (the blood circulates, and the nervous system will relax and help you fall asleep) 2. Listen to soothing hypnotic music (listening to soothing light music is helpful for improving mood and adjusting sleep) 3. Exercise more during the day (exercise more and do more). Go to bed early when you are tired at night. )