I was in your city for a day a few years ago, but I loved Poland in general. Looks like you are ready to get on a plane @k-a-s-i-a . If you want to do South America on a shoe string. Look at websites like work away. Here in Lobitos, Peru (on the sea with lots of surfing) there are loads of places offering room and a meal or two. Just have to do a few hours volunteering (front desk, marketing, cleaning, gardening etc). I see loads and loads of travelers doing this now.