Hi, Sophia! Welcome to the forum!
Learning to chant in the US can definitely be sticky (as Cleveland explained). Personally, I went to HCHC to learn (and of course, am still learning). My suggestion would be to talk to your parish priest. He will be able to guide you to the right people to help you learn. As Cleveland mentioned, directing a western choir and being a chanter/directing a Byzantine chant choir are two completely different things in the US, as one functions in western/standard music, and the other in Byzantine. This is the musical equivalent of two separate languages. If you are wanting to direct a western choir, I would still HIGHLY recommend that you study Byzantine music, as it will help you A LOT in learning the order of the services, which hymns go where, etc.
Kali Dynami (Good strength)!