I'm the case of panic and the long travel day, it is what it is. Do what you can and let the rest go. We can only control so much. Maybe you can get an Ativan for the day. I was in the car with my mom and great uncle (who was driving terribly). She said to me Do Something!
I said "He's your uncle!" and popped an Ativan and shut my eyes. She started slapping my arm "that's not what I meant!!" I gave her one, also.
Shrug.
Let go and let God.