The first time I ever flew on a plane, I was 28, and a lot like you. Absolutely terrified. I learned really quickly, though, that most airport workers expect people like you and me and are incredibly helpful and friendly! I had to switch planes in Atlanta and was so nervous about taking the train inside the airport, but they make it dummy-proof. Every airport I went to, big and small, was super easy to navigate. Now, I prefer to fly alone. I even prefer flying over driving. You'll be okay. Sometimes, you just have to acknowledge your fear and do it anyway.