You know I have had so many more close calls driving then ever have I had a problem flying! i fly at least on 30- 50 planes a year and never had any problems. My luggage has had way more problems then me.
Bring some of your favorite stuff with . Maybe a mp3 player with favorite music, a favorite pillow. Deep breathing at least three deep breaths at a time when you are feeling nervouse. And the medicating advice is always good. something mild. Your Doc will perscribe two pills if you need it. One for going and coming back.
Good luck! Really it is a peice of cake compared to other things you might have to do in your life time.