I think I was seven the first time I flew. I was excited about being in the air, but I was more excited about the sticker book I could play with for hours on end (the '80s version of an iPad). There may have been turbulence. There may have been disruptions. It didn't really matter because there were stickers. Lots and lots of stickers.
When we are young, we assume that someone else has it all figured out. Yet somehow, we learn to be more fearful as we get older. As time passed, my whole family flew less. When they did fly, they clutched the armrests until the plane hit the ground. I followed their example and learned to take my sweaty palms with me on the road.
I get the discomfort and reluctance, especially as the only airplane stories that make the news are the worst-case scenarios. With hundreds of flights under my belt, I still don't enjoy the midair bumps, but I do love getting to a new destination, so I bear it. I have also adapted some hacks that have helped me in my older, wiser, wimpier years. Maybe they will help you.