Just one question
I think I saw this game before, excpet it was using spiders and keys. It looks like you just changed the graphics. If that's the tutorial you're talking about, then you didn't really use the tutorial, you used it as a template. You 'adaptation' works, which you should be proud of. But you should try to make your own levels using the concepts in that tutorial, rather than just replacing their graphics with yours. If you got this far with a game, you're in good shape. Try to take on a project of your own now. Good luck!