I am claustrophobic and so that is the part of flying that gets to me.
I have a fear of flying too so you are not alone. Try to remember how many flights there are a day verus how many accidents. I am saying tell yourself often how safe it is. I took 1mg xanax and had a crown royal on flight, I ended up sleeping for 1.5 hours, then I only had 1/2 hour, by then I was fine.
The last flight I took. Smaller plane, I had to sit next to this high school senior who was 6'8". His elbows, arms, knees and legs were hanging all over me. Just my luck, he was probably more uncomfortable than me though.