Your life would definately be happier and better if you don't overwork yourself. Yes, you have to earn money. But in these times, be happy. Though there is economic downturn, don't worry, be happy!~ Being happy is the MOST MOST important thing in your life. Life is meaningless without any happiness. There is a limit of stress in everyone, even me. So, do not overstress yourself.

Wrong statement: Make yourself stressful and uninterested during work.
Correct statement: Make yourself happy and interested during work so you will get successful!