Well if you want you can always remove your other submission that you accidently put there. It's probably a good idea to do so as you didn't' follow the time requirements of the jam. All you have to do is go to our dashboard, go to the game you want to unsubmit to the jam and go to the game page, click "submission to Brackeys Game Jam" in the right corner, and once you are on a new page click, "Remove Submission"