Honestly really hard to get that jump mechanic down, but once you know how to it's alright... it's just the only thing out of control was the way I spammed my spacebar with my non dominant hand. The reason I rated it so low is that it was just following this tutorial by Brackey so clearly the sprites and audio wasn't done during the jam. (as an artist I find it important to receive proper credit)
Still, it is a good start for learning unity so keep at it! happy coding!!