I was in a very similar situation. I too am from NYC and went to UB. UB is extremely competitive and the CUNYs in NYC are just as competitive, if not more because it’s cheaper than private schools. I think if your grades are at leastttt a 3.4, you’ll definitely be able to get into UB or CUNY nursing. If it’s a little lower but you have a lot of volunteer work or work experience in the medical field, you may be able to get in with a 3.2-3.3. Anything lower than that, your chances are slim to none.
For me, I spent a year doing prerequisites and did terrible. 3 Cs, 2 Bs, 1 A. Instead of me spending ANOTHER year taking those prerequisites again, I decided to spend that year to become an LPN...and then go to an LPN-RN/BSN bridge program in NYC. There’s a lot less competition if you go that route here.