just words from a 15-year old girl

I don't know who I am. I don't know why I'm trapped in this never ending cycle of rebirth. All I know is that I wake up inside the worlds of unfinished stories, with a mission to accomplish the author's wishes and stabilize the worlds now headed for destruction. I do my best, hoping, praying that maybe if I complete enough missions, I'll be able to remember my past and return to my home. It's just fixing stories, it should be simple enough. So can someone explain who this random villain is who keeps following me to each world?

Lenora did not have a wonderful life. After her engagement to Prince Ronan is broken, she loses everything... her reputation, her home, and her family. Starving on the streets, she dies angry and bitter at how her life unfolded... Only to wake up in her old bed, fifteen again, five years before she died. Now she must struggle to change her fate, and the fate of those around her. This time she won't trust in something as flimsy or changeable as love. No, this time she'll have the power and the money to protect herself. Lenora has already lost everything once. She's not going to lose again. No matter what the cost. (Cover submitted by @QueenHelmer)