Are you seeking guidance specifically from a personal mentor or would you settle with self teaching with books and tomes? In the case of books it may be worth browsing the store. I am self taught myself, all i have ever learned from is books and experience.
Bending as referred to in Avatar is impossible yes on this physical plain, however i have heard some members of the occult refer to the term simply to express energy work. Unfortunately though due to that show, the meaning has been met with mixed understanding. Yes it will depend on what is specifically sought after.