Thank you for saying that, it really does mean a lot. It's because of the people who were able to playtest the game that resulted in the level of polish. If I submitted it before their input it would have probably been unplayable.
Seriously though, don't be so hard on yourself. You had a cool idea and not a lot of time to explore it. So I think you did really well.
(Haha, there's a reason I started the music on mute)