Piano is like organic chem. You've prepared for it but you know you are still gonna screw up anyway. The difference is that you may suck at organic chem but no one will find one but when u are thrown onto a stage to play piano, everyone can see how bad you suck and that feeling is really terrible. I didn't even dare to look at the people, juz kept looking down and staring into space. The worst thing is that amongst those people, a few of them are genuine pros. Felt like I was in a circus, public shaming..