[PurplePopcornDelicious]

Deep breath, its not at all unusual and make silly mistakes when under pressure, some people just cannot handle it or pump too much adrenalin for simple things, it's really pretty common.

Just take the time and take a deep breath, don't try to show off or make it clear you know a lot (which I'm sure you do!) because that just sets you up for failure.

You'll settle in with time! Good luck.