http://www.amazon.com/gp/product/068...t=%2A&v=glance
perhaps you should page through that book before you go anywhere. What you are proposing to do is incredibly hard. I'm not saying it's not rewarding, because it is, but if you are not ready to work harder than you ever have in your life doing a different job every week just to earn enough to eat, and that's one of the easier points, then you are not ready to take the trip. Reading that book will show you what you are getting yourself in for - but keep in mind that you are going to have it tougher yet since you will also presumably have a language barrier.