Hey no problem, and no worries. Jams are always frantic, even when you have the full time to work, so it's always expected that your final product will not be what you envisioned in your head. I definitely hope the experience of this jam gets you making more games, in the end that's what's important.
And I'll definitely have to look into that. Maybe for whatever my next game is I can challenge myself to use a 2D lighting system just so I can learn how it works.