This is a ridiculous thing to be anxious about; I know.
Some while ago we booked a holiday for us all to go on next year. I really wanted to go. And now all I do is worry about it. Primarily, about the flight. It's a very long (one break for a few hours), approx 17 hours in total.
It's ruining the idea for me. I don't know why. I knew before I booked it was this length.