My waza, if it can be called that, is that I try to think of not thinking, which for me is hard. But when my "witness" identifies a thought (pattern) that caused a blockage, which caused, in turn, a problem/weakness in my technique, I try to correct that. Takes constant monitoring.
In Japan, they have a superstition that if you think of a monkey when you take medicine, the medicine will not work. Of course, that makes it impossible not to think of a monkey as soon as you come down with something. You definitely can't use thoughts to get rid of thinking.
Focus intensely on now
and don't abandon the present, which is what human nature demands. Your ego wants to be anywhere beside in the middle of a conflict. Stay in the moment and notice (witness). Your body is going to do whatever you've been practicing (your waza) as long as you get out of the way.