Learn to entertain. People go to see Seamus Kennedy not just because he plays and sings well. Many people do that. Seamus is entertaining. People go home a tell what great time they had and how much fun it was. They don't care that Seamus played a CMaj7th/sus4.

Remember when you are standing on stage singing, playing reciting, whatever, and you can see those two or three guys in the crowd just in front of the speakers. The guys who you know are commenting to each other on your lack of profound skill. Or really looking over the equipment. Or are being critical of you technique and you can read their lips when they to each other, "I'm better than he/she they are/is."

Remember this, you are working and they aren't.

Don