@ilovegreysanatomy_ Umm, thanks for the offer first of all. And I'm going to say here that I might politely decline not about your work in particular, but I'm a bit uncomfortable with the teacherxstudent genre of fanfiction, especially in the situation where the student is scripted to be a minor.
(It might be different in a college-college situation where everyone is of age).
On a similar note, I will say upfront that I personally am over the age of 21, and I'm not comfortable private messaging others under the age of 19 at all. I have no idea how old you are, but if under that age I will respectfully say that personal and professional obligations have had me set limits with these communications. It's very non-personal, just an overall policy that I have in order to protect myself and others.
I sincerely appreciate your offer though, and I wish you luck in your writing!
:D.