Work / English classes in Polish? (college) [3]

I was born American and I have never been to Poland
but I only spoke polish for the first five years of my life and then learned English
I go to polish school now and I am 16
my reading, writing, and speaking isn't the best
but I want to improve it and go to school in Poland
and here are my questions:

- can I take the same classes in Poland that I can in America? like my basic classes that I need to graduate.
- if I take classes in Poland can I transfer my grades back to an American college if I decide to come back?
- where are some locations?
- are there dorm rooms in polish colleges?
- is it more expensive to be a student in Poland or America?