I was petrified the first time I ever got on a plane (I was 19). But once I got in the air and made myself look out the windows, I was in awe. It was so pretty!! Since then, I've flown alone to Montreal and also all the way across the Atlantic to Scotland (via Amsterdam). It's not so bad... just keep your mind off of it. Even though I'd flown by the time I went to Scotland, I was still very nervous about being in a plane in the air that long, over that much ocean, but I watched the movie and listened to music and slept... and I was fine.

Oh, and there's nothing childish about crying. I do it all the time in situations I cannot control and am scared of, so I completely get why you cry. You just have to realize that you can't control everything in life and that you'll be fine. I can't imagine Texas to Nevada taking a long time...