Mastery and master class jitters

I would like to be calmer- much calmer. I have gone to yoga three times this week and that has helped, but I feel like I need 24 hour round the clock yoga to get me through the next few days.
It seems that anxiety and anticipation and excitement seem to go hand in hand. I am looking forward to the mastery exhibit- a culmination of two years of work. But I am also so nervous about how they will stack up to the other artists' work. There are so many accomplished artists showing, so many varied styles and voices, and I still feel so insecure on how my pieces will present. I also worry about the lighting- although these pieces are not as dark as some of my work- the lighting is still critical.
These are pieces that I produced almost 1 1/2- 2 years ago and I worry that they will look tired. I have moved on in this series and I wish some of my newer work was going up on the board.... but that is the way it works.
I am looking forward to seeing old friends and new friends- and meeting up with some artists that I have admired but never met personally.
Perhaps more than jitters around the show I am nervous about master class. I am showing some work that may not be received very well. As Nancy Crow is one of the judges for Quilt National this year, she quite reasonably instructed us not to bring any pieces that we are thinking of entering into QN17.
I think that is the best way to avoid any conflicts of interest. But, that left me with a quandary on what to show and what to talk about during my 30 minute presentation for master class. Obviously I am leaving my 3 best pieces at home, I have another 4 pieces tied up in exhibits, and that has left me with some "experiments" on the new direction I am playing with. I really really wanted to get class feedback on one of these pieces, so I am bringing it along, and creating a brand new piece for QN17 that plays off of some the techniques I have learned. But what has me nervous is that I am not showing my best work- I am showing work in progress. And that leaves me a bit vulnerable.
So I decided to celebrate that vulnerability and make my presentation about what it takes to start a new series. I will let you know how it goes. I expect that the next few days will be full of ups and downs and I have to make sure there are more positives in my brain than negatives.