I estimated that two years in Europe would need about $5,000. The trains, hostels, ticket for flight and ferries, etc..
However, workaway.info and sights alike offer a system where you work 2-8 hours a day (usually gardening, farming, building or some other job) and you get a room to stay in, up to one meal a day and it's really nice since you can stay up to 14 days without a problem, then negotiate the rest out. There is so many of them you can just travel place to place, experience city to city and pay little or nothing for housing.
Different countries have different costs, of course. In China, where I am now, you can live comfortably, if frugally, on CAD/US$5,000/year. Maybe $6,000 or more in Shanghai or Beijing. That's about $150/month for a small apartment, $200/month for food (eating in Chinese restaurants) and $100/month for incidentals. You can earn that by teaching English 5 hours/week.
...work 2-8 hours a day (usually gardening, farming, building or some other job) and you get a room to stay in, up to one meal a day...
8 hours a day, or even half that, for one meal and a bed seems a bit steep.
Surely it would be better to work 8 hours a day at home before setting out?
what do you want to know more?i suggest you that you should choose vietnam to travel for budget money, if you want to know more vietnam, where to visit and spend, you can tell me,I always happy to help you