This is actually quite fun! I also didn't realize I was controlling the ground, but once I figured that out it became much more intuitive. I think a quick prompt at the beginning of the game to explain that would be helpful, especially since it feels like I would be controlling the actual player character instead. I think since the game is quite difficult, a little bit more time for each level would be nice (or even no timer at all?). Like for the first level, it was really tight trying to get all the drinks and also win. I think in general, it's a good idea to let the player have a few easy wins at first so that they can get a feel for the game and its mechanics, then ramp up the difficulty slowly.
Otherwise, really good job for your first game jam! I hope you keep at it!