Blimey. Sorry to read this, D R.
My mum had a big stroke five years ago.
The best bit of advice we had was not to compare your abilities that you have now to what you had before the stroke, but to how you were immediately after the stroke.
That way you can chart your progress more realistically.
Sounds like you are taking a positive approach and I wish you strength and a good recovery.
Waxing your Coupe is great way of building yourself back up