I've been doing significantly better this week. I'm nowhere near full energy yet, but I've been able to start getting things done to a certain extent.
In particular, I'm working on music composition software again! It's even technically usable already – I can arrange musical notes on the screen and have it play the music or save it to a file. But it's still very much in “only the author of this incomplete program would understand how to use it” territory. And I haven't quite gotten to using it to write music that I would actually want to share.
I've also been slowly but steadily doing more drawing. Now I have 5 comic pages with complete line drawings. I haven't been able to increase from 10 minutes a day yet, because of one thing and another, but it's still something.