The task you have a head of you will be very difficult. It’s difficult if you have financial means and or talent. NYU is a very expensive school and gives little scholarship. How are your grades? Most colleges for a BFA in musical theater require an audition on campus or at Unifieds. Some schools do prescreens which is the digital audition before you are granted an audition. You might want to check out AMDA in NYC and non audition BA programs too. You’re in OH so Chicago Unifieds would work too. I would get some evaluation from your high school vocal teacher and have you taken any dance classes?