It's a long haul but you are getting there. Well done!
Burns during rads are common. Mine were at their worse about 10 days after I'd finished which was a bit insulting! Anyway, by the time you figure out how your skin will react and what works to help you will be done.
As the others have said, fatigue is a big factor. I drove myself to treatment every day and clocked up nearly 7000 km. I was really pleased about not getting in the car every day and slept for a week when it was all over.