Just a few questions about NYU...Can anyone help?

I’m only a sophomore in high school but NYU is my dream school. I was wondering if anyone on this sight had any input on what I need to do to get in. I am the secretary or my sophomore class, and next year I will be participating in Vocal Jazz, Our schools music classes, the school play, french peer tutoring, and much more. This year I’m not in very many extra curriculars, but I’m trying to get more and more involved. I take PSATs next year too but as for grades this year, my average is around a 90%. Any opinions on what I need to do to get into NYU? Thank you.