The reason I ask is because if I think long term, at some point I'd have to think about being able to provide for a family.
That's why Poland is not an attractive location for Americans to work in. Wages are low, the cost of living is rather high relative to wages, and that makes saving money extremely difficult. Your savings potential in the US will be several times higher than it would be in Poland.
8000 PLN gross is about $24,000 bucks a year. That's less than burger flippers make in some states in the US.
That's about 5000 PLN net a month. 2000 to 2500 PLN for housing, all inclusive including rent, administration fees and all utilities except internet/telephone/TV.
Food and sundry household expenses will set you back between 1000 to 2000 PLN a month: more if you eat or snack out a lot, and less if you cook all meals at home from the simplest and cheapest Polish ingredients.
One thing that everyone forgets is to deduct the cost of relocating to and from Poland from the wages you earn there. That includes airfare and all other traveling expenses, shipping, visas and residency permits.
Then there is clothing and other occasional purchases. And entertainment, recreation and travel.
Your going to have trouble saving anything more than a very modest rainy day fund. Serious saving is out of the question.
10k gross or net? If it's net we're talking about a salary in the 98th percentile.
That is completely irrelevant to you. You are not in that demographic sample, never will be, and have zero in common with it.