Just a thought, I know of some people who had similiar problems with going to bed during the day. Alot due to depression. Sounds like your T has a plan that is good.
Have you ever had a Sleep study done? I know of people who suffered from depression and some who did not, only couldn't stay awake during the day. They had a Sleep study done, and found that they had Sleep Apnea, something that they didn't get enough oxygen when they slept at night. Causing them to be overtired and sleepy during the day. My case manager was one he had it so bad that I would be talking to him and he would be sitting there asleep. He started falling asleep everywhere even during my sessions with the pDoc. He had minor surgery and stays awake all day now.
I just wanted to tell you about that and I hope you are feeling better.
Best Wishes
Take Care,
Kris

If you think you have totally gave up, you haven't, because you are here!