Hey man, the amount of different skills you have to have to participate in a game jam is so vast that you are bound to be worse at one than the other! Don't sweat it, you did an amazing job!
Man, I would have spent a bit more time on the movement. The gravity feels a bit high and the controls are a bit delayed (maybe that's what you meant in the description?). But also more time on movement means less time for this amazing art so........... yeah well played.
It's allright I realized how hard it was only when it was too late. Having you keeping time was an idea from the beginning, it's supposed to simulate having to keep an eye on a lot of things at once. I did my best to try and make this fun :D