Mental practice?

My question today is... Is it possible to practice for a nail-competition mentally? I have realized it is only three weeks left for Nailympics and I am in Japan, without any products... Well... I have only myself to thank when I screw the competition... I should have practiced a lot more, but I just haven't been in the mood for it the last months. When I come back I have some very hectic days at the salon, with no time for practicing. I will have to enter the Nailympics without ANY practice this year. Did I hear SCREW YOU???? :-D