I don't have flying anxiety, so I don't know what to tell you.
Get an aisle seat, probably, since you won't want to be looking out the window. If you're over 21, bring your own alcohol in the little shot bottles that you can buy at a liquor store. They are under the 3 fl oz, or whatever, so you can take them on your carry-on. Drink them, and then sleep.
Take some xanax, too. Maybe you'll see a colonial woman on the wing of the plane.