There was a point in my late teens where I couldn't even be bothered to get out of bed to pee.
I would have a bottle of nyquil by my bed and when I woke up I would just take a sip of it and wait for the drowsiness to take me back to sleep (Probably... don't do that tho..)
Keeping my room cold helped me stay asleep through the night.
As long as I get dressed and move to the other room I TRY to count that as a success. I think the best way to get over these things that keep me in bed is to try to make every step forward, no matter how small, a huge success in your books. "yay, I stood up, made it to the bathroom, AND washed my face??? Three gold stars!!!" ....I haven't been very successful with this strategy. Somehow you must be hypersensitive to positive actions while either ignoring or excepting the negative. There will always be negative because there would be no positive without it.