PS. Nettle Tea lifts my mood and makes me feel well-rested. Like, almost a mild euphoria. Not sure if that's just a me thing, but the Herbs for Life lady did recommend it among her herbal recommendations for anxiety and depression. It might help you take a step in the direction of exercise. I know my best experience lifting out of depression was when I was walking 3 miles a day (to and from work), eating organic foods and no simple carbs/sugars and meditating daily. I'm in a bit of a valley right now with all that, but for my own depressed/anxious/adhd self, these are the only things that have been truly effective for my depression. Drugs have never helped, and most of them screw up my sex life, which I just really can't stand.
I understand the thing about not wanting to do anything. I've spent most of my life there. Nettle tea and meditation are very close to doing nothing, but they might give you the energy to do more physically, which might in turn regulate your brain chemicals / brain waves and pull your mood up. If you're interested in any guided meditations, I could recommend a few - just lemme know if you're interested.