I believe the term you are looking for is homosexual. The word homosexual (whether it refers to both men and women - "gay," or women only - "lesbian") has its roots in the Greek language, where "homo" means the same or similar, hence indicating the focus of sexual attraction towards people of the same gender. This is the opposite of "heterosexual," which also has its roots in the Greek language, where "hetero" indicates "different, distinct", underlining the fact that sexual attraction is targeted towards individuals of the opposite gender.
Overall, it means you are gay or a lesbian. (bi sexual)