Reason 1: You don’t like your work. Many people face this problem. You always like to be an automobile designer. But you see that you are a textile engineer and 30 years old.
In this situation you cannot expect wake up every day with wonderful idea of textile and go to work eagerly. You shouldn’t expect me to solve your problem. No one can help you to decide for your future except yourself. But in this situation you should be an automobile designer or eager for textile.
Edison: I have not work for a day in my life, all of them were entertainment.
Reason 2: you cannot recognize important work from unimportant