Am I ready?

At first I was against it, but I needed money, so I agreed. One day, I woke up in the body of a hot brunette. I was still me, living in my old appartment, wearing male clothes and all, but for some reason, I was now a girl. I tried going to work, but no one recognized me. I called my girlfriend, but thought it was some kind of sick joke. My oldself had vanish into thin air.