I hope you don't sit next to me on a flight. I'm one of those people who read books such as "Terror In The Skies" and "Black Box Voice Recordings".
But being serious, i'm sure at one point or another, people were scared when in a plane. When i was first on a plane, it the point on the climb when you hit air pockets and the planes seems as if its falling out the sky, then the airflow over the wings increases again and climbs normally - but i now see it as fun and exciting! Most probably because i'm training for my PPL in a wee 2 seater Cessna that gets chucked about by the wind.
I'm currently studying Aeronautical Engineering at University, so i know a few things about planes - and when it comes to cold hard facts - its true that air travel is much safer than driving. Aircraft have numerous backup systems for each system and can even fly on one engine (or none) and still land safely.
But i would listen to the earlier statements of advice. Just relax and try to take you mind off of it. Take in the scenery, read a book... any of the ideas mentioned earlier. You're in good hands.
At least have the satisfaction of having a pilot who could easily have 20,000 hours of flying experience who's been doing the job for over 30 years against driving with motorists such as 17 year old **** who think they own the road with their 1982 Corsa. Who is the most likely to crash and cause injury/death to others..