Finally I found a school where I am going to study my theory. The school is in Poland (I already described some thoughts why I choose that country). The problem is that I have to obtain a permission (something like a TSA approval in the US), and I have to send my application in paper form, which takes some time. I sent my papers, and now I am waiting for an answer.
My meteorology results are not so bad, and I am switching to the Human Performance.
I also applied for the FAA validation of my EASA PPL to the FSDO in Miami since I am still considering that option.