I had suffered from insomnia for about 9 years before I took the advice from of my mother. Now that I think of it, unconsciously II worried worry that If I had not slept well, I would be tired and ruin the next day. I studied hard for to get a high score for in my college entrance exam, rsity, getting to  get a good GPA when I was an undergraduate student, and to get an admission for medical school. For these reasons, I was obsessed with my condition more than needed./I was far more obsessed with my condition than..i was beyond obsessed with my condition..I tried to overcome the insomnia by various methods. I didn't exercise or eat before sleep, I used perfume for sleep/to sleep, never took /didnt drink coffee after afternoon,in the evening,i drank  drinking warm milk or hurb herb tea before going to sleep, put on socks for sleep, etc. However, it those didnt helpful.
One day my mother came to my home and saw me tossing and turning in my bed but being failed to falling failing to fall asleep. She said that the worst case is not just that I would never sleep all night/not only being unable to sleep all night. I would be tired during the next day, of course, but what dose does it matter? I realized that even the worst case is not the very worst case actually. And I came up with the article that about the Golden medalist for in swimming of /during the Beijing Olympic, Park,He said he had never slept the night before, but won a gold. Swimming is a race against 0.01 second so having a good physical condition is crucial, but studying is influenced by physical condition far less dependent on physical condition  than swimming. After my attitude changed, I got free from insomnia./i got rid of my insomnia.