Have you and your parents considered going to a Deaf school where ASL is the primary language and I am sure you will be alots more happier and be with another Deaf teenage girls your own age.
Of course I would encourage you and your parents to encourage your friend and her parents in the mainstream school to move to a Deaf school with you.
I think that would be a good experience for the both of you. I think it is also worth showing your dad and mom this one so they can talk and debate with you then who knows you could be on the next bus to Deaf school.
God Bless.....