Recently , i feel lost myself . No passion for work , no passion for everything . I just want to have a sleep and don't want to move . Before , i often spent some time to study when i am free in my work . Though i own the free time , i couldn't study in a good mood . So i am very upset . This situation spoil my life for days . Perhaps , these happened due to the long time leave . Anyway , how can i go out this situation ? It is a serious problem !