It was my Grade 2 exam and I was REALLY REALLY well prepared. But I ended up screwing the whole thing because I was very nervous and the piano I had to play during the exam was an upright piano while the one which I actually practised on was a digital piano.
My first piece went quite well.
In the second piece, I made mistakes towards the end.
And finally in the last piece I made lots of mistakes.
Sight reading was good enough but I messed aurals because I got really nervous, so I really don't know if what I answered was correct.
Why do you think I messed up even though I was really prepared?
What should I do?