I consider immigration. I sometimes feel like I don't fit here, mentally, culturally and even to some degree lookswise.
It's confusing... "Consider" means you are not there yet or not permanently. "I don't fit here" means that you are already in Poland. Which is it?
I could write a book on this subject, so my bottom line is: switching countries is not for everybody. You really want to join the people on the other side, not their politics, lakes, and mountains. Those tend to disappear in a week or sooner.
Think marriage. Would you want to marry someone because another person said, why not?
Your hesitation means only one thing. Don't.