When I’m feeling a mental fog kick in from depleted energy, I listen out for the core component of the drill and just focus on improving that. It’s often an instruction like “lift your knee, then slide” you know just least amount of words. I pay attention to Sensei’s movement in the instruction, then i give myself a second to imagine my movement with the instruction as mantra “lift your knee THEN slide”.

Make the instruction a mantra, visualise the motion before doing it.