Hmm, is it possible that you can take some music with you? Like a ipod or something? Or what about if you need some time to calm down, take a portable dvd player with you and turn on a movie but mute the sound so that people think you are watching a movie but you are really just getting a moment to compose yourself. Maybe take a small cloth with lavender oil on it to smell when you are worked up, and perhaps a good nights rest and tea before you get on the road.