This is a difficult game jam for beginners due to how short it is. It's going to tough to balance scope with theme. Aim for a very simple, casual game. I'd strongly recommend Godot. Try to do some basic Godot tutorials before the jam starts.
Okay thanks, I already tried GDeveloper and it's super easy, I'll try Godot today. Also I don't worry about the time since I'm having school holidays and as much as time as I need.