I think you're in a great spot! You're making good money, you're paying off debt (saving). From here, I would focus on optimization since you're doing so well. An extra 5 months of paying on a loan isn't a big deal (to me) if it means you come out further ahead financially in the future. Contributing to the 403(b) this year means that money has an extra year to compound and work for you & also means you get to take a deduction on the interest you've paid. Seems like a win-win to me.
If you want to just get rid of the debt, though, there's nothing wrong with it, but again, becuase of your situation, I'd focus on optimization.