Good luck on your trip. On one hand I sort of wish that I'd have the nerve to do something like this when I was your age, on the other, I'm glad I stuck in school for my degree.
Try to stay as clean as you can then you'll have more interesting interactions with people. Maybe even stop in places and do some sort of work for a few days.
I'm not sure bout the money making potential from a web site, but its cool that you have one, own domain and all.