Yeah, I'm way too uncoordinated for Zumba. I tried it at home a few times. I need to spend more time on the slower stuff. Hulky can't stand teaching me to dance because he doesn't understand how I can't pick it up after doing something twice.
I like your bedtime plan. I used a similar schedule early last year when I was working on getting myself in and out of bed at reasonable times. I usually didn't go to bed until 10:30, but now I'll fluctuate between 10 and 10:30 and that works fine. It took a couple of months to really ingrain the plan.