I too agree with the travelinglady's suggestion regarding listening. For me it was audiobooks that worked. My local library has free digital downloads that I would add to my digital player and play them through the FM radio transmitter in my car. Being told a story by a professional reader is very engaging and does let the time pass quickly while driving.

Another thing you can try is taking something from your home on the road with you. Something that makes you think of home and comfort. It could be someone's photo, a trinket, a pillow, blanket, etc... When you start feeling anxious, you can reach out for it, touch it, smell it, etc. to help you calm your nerves.

-stuck