I’m a nervous flyer too. Although I’ve got much better, I still hate turbulence. One time I flew from Honolulu to Vancouver and the airline emailed us the day before and offered us the chance to move the flight due to bad weather/bad conditions, just what you want to hear as a nervous flyer. The plane tilted just as it got into the air on takeoff , it was horrible! People clutching the arm rest, the rest of the flight wasn’t too bad thankfully.
Have you ever gone on spoken to the pilot? That may put your mind at ease somewhat, if did for me. Pilots really aren’t worried about turbulence, it’s more that they want the passengers to be comfortable. But yeah, any noise that sounds off and I brick myself. I always feel more comfortable flying over land than sea but yesterday’s events throws that assessment into doubt.