You probably won't make very much money and sometimes in my experience you don't get paid at all. You need to think carefully and make sure you get a work permit- don't be tempted with Thailand- not a good working experience if you don't have a visa/permit!
Best place to work is Germany if you don't mind the climate which is a lot like Britain's.
I answered an ad, got through the interview, got offered the job, ( complete with air tickets ) and flew to Barbados. No problem
Then did the same again when I got back, went off to the Middle East.
But I do have professional qualifications in the information business.
If the 19 in your name means your age, for the USA I would seriously look at becoming a camp counsellor over the summer month, working with kids from 5 to 17 - a lot of fun if you are outgoing and sporty.....doesnt pay enormously but all accommodation and food found.
As has been mentioned, you will likely find getting a work Visa in North America nigh on impossible. I was able to do it in the early 90s because I worked for the London branch of an American company, but even that's much more difficult these days.
What skills do you have that another country might need?