Not that I advocate lying to one's doctor for narcotics...
....but I actually do have mild anxiety when I fly, and my doctor has been great about giving me an ongoing script for xanax for years now. I only get 10 at a time and only ever refill it maybe twice a year. I guess that is infrequently enough to let him know I'm not taking it recreationally.
That being said....when I have one of those completely sh***y weeks, a xanax and a glass of vino is a GODSEND.
It's like the Mr. Clean Magic Eraser for whatever ails you.