still I am going to Poland and need advice...and what is the worst that could happen...seriously :/
Not trying to scare you or dissuade from anything. Whatever you do will be what you want to do. Life is a series of successes and failures. If you learn from the latter then they won't occur as often. Like the other poster, I am offering a doze of reality. If you're up to it then all the power to you.
I think a lot of questions you have can be answered only by the actual school, or even the department where you would like to study. Call or email them.
Go, have a blast and good luck.