Amanda Pens Memoir to End 'Speculation,' People Magazine Reports

April 24, 2013— -- Amanda Knox decided to write a tell-all memoir, despite facing a new trial in the slaying of her British roommate, because she's "tired of speculation," according to People magazine.

"I wanted to lay myself out in a completely honest way. It was, you can judge me, but this is what you have to judge me on," Knox told the magazine, which hits newsstands this week.

In her soon-to-be released book, "Waiting to Be Heard," Knox says her time in an Italian prison was so difficult that she considered suicide by suffocation with a garbage bag or cutting herself in the shower, according to People.

FULL COVERAGE: The Amanda Knox Trial

Knox, 25, says she caressed the cheeks of family members' pictures in a photo album, all while fending off unwanted sexual advances from prison officials, according to the magazine.

Knox was imprisoned at the Capanne prison in Perugia, Italy, after her arrest in 2007 in the death of her British roommate, Meredith Kercher. Knox was sentenced to 26 years in prison in 2009 while ex-boyfriend Raffaele Sollecito was sentenced to 25 years.

Knox was released from prison in 2011 after an appeals court threw out her conviction and scolded the prosecution's handling of evidence and the case. Sollecito was also released.

Knox's first televised interview since her release will air during a prime time special Tuesday, April 30, at 10 p.m. ET with Diane Sawyer on the ABC Television Network. Her nearly 500-page memoir, published by HarperCollins, will be released the same day.

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Knox reportedly writes about having her every move analyzed from afar, including the now infamous video of her kissing Sollecito outside the grisly crime scene.

"First I showed not enough emotion; then I showed too much," she wrote, according to the New York Times, which obtained a copy of her memoir.

During the murder trial, tabloids often referred to her as "Foxy Knoxy," with sexual connotations. Knox told People that "Foxy Knoxy" was originally a playful childhood nickname from her soccer team that had to do with her skills on the field.

"In the courtroom, I was a called a liar and a murderer and a demon," she tells People. "In the media, I was called a weird, jealous whore. Suddenly, I wasn't me."

Knox said a prison chaplain helped her maintain her sanity, teaching her to play piano on a keyboard cut out of paper, People reported.

"By the time she returned home, she didn't know what a tweet was, had never heard of Justin Bieber and insisted on washing her own clothes in a tub, just as she had behind bars," executive editor of People magazine J.D. Heyman said.

Knox learned last month that the Italian Supreme Court had ordered a new trial, meaning the marathon legal battle would continue for her and former boyfriend Sollecito.