She also said she was frustrated by her lawyer's refusal to allow her to do TV interview requests. "I want a chance to be heard damn it. This is my life and everyone is playing with and I have no control over what is said or done," she wrote.
She sarcastically commented on the negative media attention she's received. "Maybe I should just change my name to Evil, what do you think? LOL."
In the letter, written to crime memorabilia dealer Eric Gein, Baker says she will be living alone when she gets out of prison. In three rambling pages, she never mentions Zahra or any concern for her stepdaughter, who was still a missing person when the letter was written on Oct. 29. She also doesn't cite any remorse for the girl's disappearance.
Gein, who runs the website SerialKillersInk.net, told ABC News he contacted Elisa Baker by letter weeks ago under an assumed name. The most recent letter is the third he received in return.
A capital punishment attorney, Lisa Dubs, has been "provisionally appointed for any potential homicide charge" in Baker's defense, according to Baker's primary attorney Scott Reilly.
Zahra was reported missing by her stepmother and father on Oct. 9, but police have said no one outside of the family has reported seeing her since Sept. 25.
The girl had a grueling life. Stricken with bone cancer, she lost her left leg and much of her hearing. Relatives and neighbors said that Elisa Baker, was abusive to Zahra, who was often bruised.
ABC News' Yunji de Nies and Dean Schabner contributed to this report.