Depends on you
If you have no success in your own country then it is very unlikely that you will go to other places ( poor or not ) and magically be successful
If you have success in your own country very likely you will have success in other countries. But it is a catch though, the communication barrier
I lived for the last couple of years in Spain and because I still do not speak really good Spanish I tend to have a lower success rate with girls that do not speak English. And Spanish people for example do not really speak that well anything besides Spanish
If you would go to countries that people for some reason do not speak English almost at all then you are f8cked as you will have to learn the language ( and this can take a couple of good years )