I need help!

I've joined a couple game jams before and I'd say I have pretty good experience developing games but, this is the first time I'll be joining a jam solo and I'm not quite sure what I'm getting myself into.

I'm a programmer and I want to try using Godot for an actual game instead of fooling around for the first time. I'll be using some assets I already have for the audio but I'm not quite sure what I'll be doing for the art. I've used Aseprite to make some pixel art before but never for an actual game and never on a deadline.

In any case I'm open for any advice or suggestions that you have for me to manage this jam for me.