Thanks for the feedback, it was nice and constructive!
The thing about which you are right is 100% that next project should be more simple :P
At the end I have started to realize that while making big projects you don't really get enough time to practice coding and other important stuff, so my skills didn't really grow up.
But hey, that's so nice of you that you played the game and read the development log and after that even left a feedback, thank you!!