You're right depression is the most stupid illness ever. Someone once told me the difference between a cold and the flu was that with the flu if you saw a £20 note lying in the middle of the road you just wouldn't have the energy to go and pick it up. Depression has exactly the same debilitating effect, but the stakes are so much higher. Unlike the flu depression doesn't normally get better in a couple of weeks,even with the right meds it will take a few months, sometimes longer. Unfortunately, doing all the right stuff to feel better is usually something that you can only achieve once you start to feel a bit better, until then like Glok says concentrate on doing really easy stuff even if it is only getting out of bed every day.