... However, I wouldn't count on getting in to a top school like NYU. ...
Agreed. Odds of getting a single specific school are generally pretty negligible. You don't pick a med school, you pick a group of med schools and apply. Your credentials will determine how big a group you have to make it. But nobody can say I plan to go to X school. X school may decide you aren't a good fit for them. It's not all about number, and it's not about where you want to go as much as it's a mutual thing between you and the school. Best to pick a group of places you'd be happy at, and once you have successful interviews, you can decide which is your dream school. But I'd have to say if the question is -- what are my chances at NYU? The chances are near zero. If the question is -- what are my chances at med school? The chances are still okay, but you have to dig yourself out of a hole you are creating, and not go any deeper.
A bunch of C's in the prereq means your group of target med schools will have to be large. And you need to right that ship,
before you take any more science courses. I would probably recommend to the OP that he stop all science courses for now, lose the bio minor, concentrate on the other stuff, graduate, and pick up the remainder after graduation, in an informal post-bac, when he can spend whatever time is necessary to get through these courses with A's. What s/he is doing now isn't working, and another C would dig OP deeper and deeper into the hole s/he created. Alternatively, OP could get a tutor, take courses one at a time with a very light load of other courses, and proceed with caution. What you don't want to do is try to stay on some imaginary timeline where you have to take two science courses a semester to try to take the MCAT at a certain date, and still have other academic requirements on top that divert your time. AND you obviously need to be putting together a nice resume of ECs on top, which further diverts your time. So I kind of think you put the sciences on hold until time is freer because another C will pretty much be the nail in your premed coffin. For nonsci majors, the BCPM is very important (as it tends to be more different than cumulative GPA than that of a sci major), and yours is quite low.
So stay far away from another science course until you have a good plan for how to fix things. My suggestion is more time per subject and fewer things going on at the same time, which generally means taking them postbac, when all the business courses are done. Tutors and lighter courseloads might help if you are anxious to take more courses now, but I'm not optimistic. Sometimes it takes time for things to "click" in the sciences. So don't be in a rush -- this isn't a race.