First, HI! I'm surprised to see you!
Second, there's no such thing as a "normal" recovery.
Remember - every single head injury is different. When I started to get better my family and I expected my to progressively get better like is I were recovering from a sprained ankle or getting over a cold. But people don't heal from brain injuries that way... there is a lot of two steps forward, one step back. Or a set of good days and a set of bad days with little to explain how to get one over the other.
Just remember that you are experiencing good days and that in and of itself is a good sign.
I know how frustrating it can be to not feel well cognitively speaking on any day, or at any point in a day. It feels rotten. But you know what? My bad days now are better then my good days were a few months ago - and I still don't like the bad days - even though they are an improvement from a few months ago. Why? Probably because I know what it feels like to feel better and that's what I want.

All the time. And I want it NOW!
OK, I'll try to stop channeling Varuca Salt.
Just hang in there.
And I think stopping your NUCCA treatments sounds like a good idea for the time being.