Something is wrong, I'm trying to submit my game but when I go back the the page after submitting, It is still showing Submit project.

that's odd

make sure all of the things are filled out.

I did fill out everything, this is what I did: I did not do music or art and When you said What goes up must come down and Three colors, I thought of flappy bird with three colors that is what I said on the required part

and it shows I submitted next to my name

You do realize that you submitted the game. Look on the submissions page.

There is no submissons page