I haven't realized that I may be insomnia! I don't know why I am not able to fall in sleep in the night. Until few years ago, I was good at sleeping anywhere. Sleepless nights waste energy out of my body, or do not let my body store energy.
This problem must be solved in a short time. It might cause serial damages on my job! I don't want to allow this situation to harm my life! I have to adjust priorities between tasks to do everyday and time to go to bed by shutting up these tasks!