I recommend reading about the actual architecture of a plane and all of the things that can possibly go wrong with it. For example, I learned today that it is not possible for a wing to "fall off", because the wing"s" are actually one structure that connects across the plane. I've traveled to and from Poland (from central Canada) twice now, and then to Poland once again. Every trip requires at least one flight which is 8-10 hours long, and goes across the ocean. Your typical turbulence is not actually a threat to the aircraft. Even if the plane suddenly falls for a few seconds, which occurred on my flight, the wings can handle extreme flex. Turbulence will not flip a commercial jet. I'm trying right now to kill my fear of flying, as my three flights to Poland this time around resulted in extreme and unwarranted terror. My 1.5 hour flight from Amsterdam to Warsaw was by far the worst. I also am the kind of person that is INCAPABLE of sleeping on a flight of any kind. On my longest flight, 8 hours, I did not get up once, to go to the bathroom or otherwise. I didn't finish a single movie. I didn't sleep. I watched people sleep, and tried to take pictures of Greenland and the UK as we passed over them, in addition to "monitoring" the wing for any pieces suddenly falling off, or cracking (which is insane). I think the best thing you can do for yourself is to just educate yourself about what is actually likely to go wrong, so you can at least stay calm until a certain threshold of danger has been passed.