I'm not going to rate this because it didn't work for me (Just a fuchsia screen with sound effects as I pressed buttons was displayed), but from reading your description, you shouldn't be so hard on yourself. Honestly, game jams are about what we can do together, about 500 weird niche developers, not a team of AAA weirdos. Keep trying and building. After a time, I promise you won't be disappointed in yourself and will have something decent. After that it will be a little better. Soon it may even be something you yourself can see as good. It's just the process. :)
Thank you for trying our game! And really sad to hear you're having issues booting it up. We've had a couple of people come back with similar issues, but for others it has worked properly. Could I ask if you have your graphics drivers up to date? And if not, could you update them and let us know if you're still getting that error? Appreciate any help, and thanks again! :)