Keep it simple. Dont worry too much about the graphics, focus on gameplay first. Test a lot, ask a friend if you can. Submitting the project itself takes time, so dont leave it at the very last minute. That's all I can think of at the moment...

Good luck with your project! =)

me too, i have no clue what i'll do with audio 😭

Play to your strengths.
If your mostly a programmer, try to find a good source of ready made assets. If you have done a few games in a particular genre, try to stick to that genre. 
If on the other hand, you do mostly Art and Story, Pick a genre and Game engine that focuses on that (e.x. a Visual Novel) 
In either case, pick a game engine if you haven't already and experiment with it if you haven't already.