Progress?

I don't trust the sensation (I am ... too old?) but lately I have felt as though the studying has started to pay off -- as though the groundwork, the basement of my mathematics knowledge has become a little firmer, and I am flailing somewhat less. In particular, spending time with trigonometry has certainly returned the investment.

The morning sessions are still proceeding slowly, so that I am a few days behind the schedule I never got around to posting (I suppose I could still do that). I am currently working problems on differentiation using the chain rule.

But I think the attempt to focus is working.