Well, if you get accepted this cycle then just go for it, you'll probably end up owing more than 300k after CRNA school though but hey, just think about the med and law students! They manage it just fine...right?..maybe? (trying to be as positive as I can)
But anyway, if you don't make it in this cycle, I'd probably try to pay off as much debt as I can if I were you. Maybe use that time to try to make your application stronger (GRE, GPA) if it's not already.