There is no doubt that over medicating is dangerous but so is trying to work through a bout of clinical depression without medication. Clinical depression is a medical condition. Not something you can talk yourself out of. The chemical imbalances can be very successfully addressed with medication but it can be complicated as it sometimes takes a lot of trial and error to find the medication to suit the particular person. However, untreated clinical depression can be very dangerous.

A lot of people confuse a feeling of general depression with clinical depression. They are very different things. A general feeling of being down, caught in a rut, unmotivated and generally just finding it hard to get up and go is not clinical depression. Its just something we all go through. If you have ever known anyone with clinical depression you would never mistake the two.

To get back to the original question. Taking on two many projects at once or putting projects off until they accumulate into a big ordeal is always a nightmare but it happens to most of us from time to time.

You have been given some very good advice in this thread. Exercise is very good for the mind. This isn't just a saying but a medical fact. All studies on this subject show an improvement in the mental facilities of those who got regular exercise.

Music and other hobbies and interests can also help to improve your mood generally. My favourite though is to have a good rant about it. Get it all out of your system.