Why my brain hurts.
In many ways the actual driving is the easiest bit of my truck driving day. Getting stuff on and off can be challenging and hard work but by far the hardest thing is the sums!
I have to keep so many rules about driving time, working time, time to next stop etc in my head that it really hurts. To get a sense of that complexity watch this video from KevTee which attempts to make things easier. Stick with it long enough to feel your brain aching like mine does every day!