Not having a tutorial is a big downfall I do admit. One of my biggest regrets that I wasn't able to add to the game for the jam. There are keyboard controls but they aren't mentioned in-game because of course, there is no tutorial haha. They were only mentioned on the game page so it's not your fault. Everything else you've mentioned are valid points and I will try to get those issues worked out.
Sorry for the confusing experience!
Thank you for playing and I appreciate your feedback!