Be Home By Midnight

I was just a normal girl with a less than stellar life until suddenly I wasn't. Suddenly I'm my fanfiction character and maybe I never existed at all, and everything is screwed up. Who am I? Why am I even here? All I know is that the Doctor, who should be fictional and not real, is all I have left and he can help me figure this out. 10/OC possible eventual 11/OC