Przepraszam, ale nie mowie po polsku
But if you speak english I can tell you... I haven't take any real-life course or went to any institution of art... actually I went to an university of art and left it after one year, when I realized it was just a waste of time.
The only thing i did was to practice a lot without studying, which was a great mistake... until eight months ago, when I went back to fundamentals and started studying design by my own, which was the game changer IMO.
If you need further advice let me know.