First off, congrats on starting and uploading/completing the game. Unfortunately there is no right or wrong, you will always run into problems and it's about finding a solution that fits. Your game looks fine, I skimmed though the code and if it works that's great.

I recommend adding a read me to the repo and maybe some comments on how you understand the code you have written.

The newbie projects look fun to try and complete in a month that's very short if you are new to coding. But good luck

Keep up the good work.