Okay, this is not even close to "bad" game, at least it was fun to jump around and spam boxes :D
You should be proud of yourself being able to create something like that. Of course, camera and movement controls are a bit clunky, and I would suggest to zoom out camera a bit to be able to see more stuff at the beginning. But these thing come with practice.
I actually liked game idea, mechanic was actually good. Even felt quite nice to stack some boxes and get launched into the air (even if that was not intentional) :D
And art itself was actually quite on point, especially color pallet. Making colors work together is hard so that is quite a big plus.
Overall, game might not look as impressive in the context of others, but you need to understand that everyone has different level of experience. Making something that you are proud of yourself, takes time and practice. Each game is a step forward. I wish you best of luck on your journey!