It is sunny now! And my mood is also very good. A few days ago my mood was very bad and didn't want to go to work.

Now I feel better than yesterday.And I find the reason why i was so tired. As i always thought about all things all the time, such as job, salary, house, car, future, and so on. And all of these make me very tired and anxiety. I remember someone said:  you should forget everything and then you will be successful.