Hey there congrats for submitting on your first game jam! That's amazing
Also, you don't need to apologise, we are all here to have fun together and learn along the way \(^_^)/ I bet your game is pretty nice and don't worry about experience, that is something we get more with time.
And as my friend always says: "being and experienced coder doesn't mean the game will come out amazing", there are many other important factors along development too
Anyway, congrats again and be proud that you went all the way and submitted your game ^-^ I bet you learned a lot and has hopefully had fun along the way :D