Anxiety

In 9 days, I have to perform 5 or 6 original pieces in front of an audience of up to 150 people. Performing in front of 150 people isn't necessarily the problem so much as performing original works...ON THE GUITAR...is. Four of the songs I'm going to play are on guitar...and I'm not sure how well they're going to be received.
My personality is that of a drummer. The only reason I own a guitar is because my uncle is a huge blues fan and I was born into a family of rock 'n roll/blues lovers who adore guitar players.
My original works on guitar don't even come close to matching my personality behind the drumset. They're much more relaxed, and with the exception of one, were created sitting by myself next to a fireplace or in some other place of solitude.
I'm nervous and anxious about sharing so much of my personal self with such an audience. Let's throw into play the fact that I have had very minimal training in music theory. My songs, for all I know, should be titled "Example of Incompetance Number 1" and "Illegal Key Changes Vol. 3". However, I find comfort in the fact that they're my own, they sound good to me, and I enjoy playing them. It's a performance of original work. I don't really care...I don't think it'll be necessarily bad, especially since I have a competent guitar player playing with me for most of the show, but even if it is, who gives a shit?! It's only gonna hurt your ears for a few minutes...and I only have to do it once. When all the guitar playing's over, I'm going to drum. I hope this goes well, too, even though I"m obviously much less nervous about drumming.
My pieces may put the audience to sleep (until an illegal key change??) , but I have written one rockin' guitar piece that I hope turns some heads and is a success as my first attempt at a rock original on guitar. We'll see how the whole thing plays out...It'll be interesting if nothing else...