Thank you so much for the feedback, I'm really glad to hear my effort came through on that front. (: And I am just legitimately happy this small thing I threw into the void has had some eyes on it.
The difficulty is indeed maybe a bit harsh, during development I ended up aiming for an old-school arcade feel, where you'd have to bash your head against it for a few times before it clicks - and I was also stricken by the curse of testing my own game so many times, I couldn't estimate how the difficulty would feel for people not deep into it already. Admittedly, the whole concept behind the difficulty curve is a bit of a bad idea in today's attention economy :D
I'm excited to see what your future projects will bring. I enjoyed building on this tutorial and with the limitations of pre-made assets from free sources, I think the limitations bring out creativity. It is a good approach to learn, not just the technical aspects, but also all the stuff surrounding game development.