Wow!!! Thanks all for your well wishes and suggestions. I was doing OK at responding to individual posts in the wee hours of the morning when the posts were few. I went to bed at 4AM and you all woke up, while I slept til noon.
Part of my problem has been, since the cancer diagnosis, I socially curled up unto a ball, breaking off contact with everyone who wasn't family. For the few years before the cancer, I was very active on the "other forum", but dropped out suddenly when I got that news. It feels good to be back talking about trains and interacting with people.
Many of you have suggested that I find people to help with the layout. I think that will be the best course of action. There is a local NMRA meeting coming up. It's probably time to drag out the track plan and the photo album, and see if anyone bites.