Safest thing is to not let yourself get to the point where you don't feel like doing anything. When you feel like this get up and start doing something really fun!
We break from Depression to share interesting fact from old times:
Today is: 21st September (GMT), in history on the 21st of September, 1911 AD the following death happened:
Arab Pasha: "al-Misri" [Pasha Ahmad Arab), Egyptian minister