Disregarding prodigies like Mozart, who seemed to be born with the natural ability to create and compose music - most people do not learn music by firstly writing musical notation or creating a song. They often learn by understanding what cords/keys/etc. make which base notes, and then maybe move on to playing “Mary Had A Little Lamb”.
Take the same approach with making a game. Instead of trying to make a game right off the bat, learn your keys(UI), then try to reproduce something that you see in example levels - like placing a hardwood floor, or editing a particular material to be more shiny than rough. It will begin to piece together, even if you don’t realize it at first.
Trying to jump in and make a game is way too big of an undertaking. Just my suggestion.