i am in the same boat with ya guys, i had to postpone deving due to irl + game bugs so yea. this def sucks for as it was going to be my first game jam :/
I am fairly new to this game dev journey too, but i did get some exp points :p by working on rly small "projects" but this branche is so vast u can never learn too much(which i hope my first game jam here will help my with). GL and HF btw when GameJam starts^^