Thank you Aluvea.
I just learned so much while making this project and wanted to put here everything at once. That wasn't smart decision. Coding isn't my forte, so every little step done in learning it makes me really happy. I'm quite aware that game loop doesn't exist in this game. Not even a gameplay is present. Just pictures, sounds and you can click things, which change variables. I'm quite aware that I have to rebuild it form the scratch, so it will be fun to play, but first I plan to read and practice programming to don't act like child in toy shop :)