I have been conducting a personal experiment over the course of the last 6 months.
It's quite simple really. I have been practicing the exact same show set everyday, 2 times a day.
I have also been performing this exact same set as often as I can.
What I've experienced is quite interesting albeit predictable. I've gotten really good at this set.
These have been my best shows ever. I no longer need to focus on the songs, instead I focus on the crowd and the performance.
Wishing you continued success!