I've been doing GB for nearly two years now. One thing that has really improved for me over that time is .... my ability to count.
To start with, I used to have trouble keeping track of which set I was on, and I invented all kinds of techniques (do the first two sets facing this way, the last two facing that; put a spoon on the dining table after I've done a set) to keep track of which set I was on.
I don't seem to need to anymore. I can count subconsciously and it works!