I Say This With Love
My frustration in this video is very real (lol), but the advice is just as real. These tips can really give you an edge over your competition 
1) Don't preface your performance with excuses!
2) It's ok to FEEL nervous, but it's not ok to LOOK nervous.
3) Follow instructions, and be prepared.
Bonus: The proper response to a compliment is, "Thank You".