“I just moved to America from Europe & I am experiencing culture shock. As I am under 21 it feels asdfadsf ”

I just moved to America from Europe & I am experiencing culture shock. As I am under 21 it feels like everything in this country is censured. Sure, people can have fun with out drinking but here people my age seen so immature from years of suppression! Will things get better or should I move back home ? HELP