Forgive the digression but this reminds me of an experience that stuck with me. A good friend of mine who was paralyzed in a car crash, spinal cord completely severed at the chest. I visited him in hospital. A few days earlier he was an athlete and soldier, a very strong and physically imposing dude. I walked into the room and saw him so vulnerable, lower body useless, catheter bag, the whole thing. It was a shock. He greeted me warmly and immediately asked me to go to the kitchen to get us both a beer. I had a minute alone in the kitchen to get myself together, and was able to do something trivial for him, when of course I was powerless to deeply help my friend.
I'm almost certain this was a clever people-management strategy they taught him in the spinal unit. Maybe he came up with it himself. It certainly helped me. A very generous thing to do.
He went on to be an accomplished paralyzed athlete among other things.
That got me out of bed every day for months, right when I wanted to the least. I'd eventually have to leave the house to pick up coffee and milk. It meant making someone happy every day, doing something I enjoyed, saying hi and talking to someone face-to-face even if it was brief. That kept me going and held me accountable. Anything you can do like that is going to make things easier.