Should I freak out over a new public school?

Okay, I have gone to Catholic school almost my entire life, now for 7th grade and up, im going to a public school called Walnut Hills, you might have heard about it. Anyway, its a college prep school and im scared out of my mind. I dont know if im ready for such a big change. I mean, that school is better academically, and there are 2,600 kids at this school. Im happy that i get a little more freedom at this school rather than Catholic school, but i just don’t feel like i fit in. Its kinda overwhelming.

I dont know if im being over-dramatic or should I be nervous? Am I crazy?