[TEA-T2] TPJ2O Heal ...

1. Mary is a high school student living by herself in Fuzhou. She is very busy with her schoolwork. At night, she is so tired, so she plays on her phone to relax. Then she cannot fall asleep until 3AM. Usually, she falls asleep with her phone in her hand and the lights still on. When she wakes up, she is super tired. Now, she cannot pay attention in class, and she is worried she will fail her course. Give some advice to Mary.