Hi widgets; Byzantine's advice is excellent. I can understand your frustrations. I don't know where you live, but I find in the fall/winter my mood always dips. This year I have been using a SAD lamp and it has helped. Here is a link to the website where I bought mine http://www.northernlighttechnologies.com/

I find if I don't continue with my routine i.e. going to the work, gym etc. the depression gets worse. I know it's hard and I hope the depression lifts soon.