I had a lot of health issues so I couldn't work on my game at all, I did the prototype, but the whole art is missing and I don't want to submit that, to be honest, because the game is really dependent on the art.

I'm also suggesting this because I don't see any entry, which is weird, really weird, perhaps not everyone was able to work on their games because of vacations. That's why I suggest adding a couple of days to the deadline, perhaps even a week.

I think if you host a jam you can set it up so it wouldn't show how many entries already got submitted?

I had a lot of delays as well and I am disappointed in it looking like a rough prototype, but I'll submit it as is

I'm sorry you have had health issues and it's because life often gets in the way that we set a period longer than most jams at 14 days. There are entries submitted already (which I don't think entrants can see) but to extend it beyond the current deadline would be unfair to those that have spent time getting everything ready for today. I will be submitting my entry today and I assume others might wait until the last few hours to ensure they have tested as much as possible. Remember, it only has to be a playable game and meet the jam criteria to get the free course. Good luck.