Shortly after being released, she was hired by Jane Pratt to become beauty and health director of XoJane.

After overdosing in her apartment and spending two weeks at Bellevue in 2011, she said she 'vowed never, ever to lie to a job again: they could take me or leave me with my drug stuff.' XoJane She worked at Lucky for two and a half years before quitting after failed attempts at sobriety. She attended rehab in Connecticut for a month, and when she returned she was promoted to associate beauty editor. While attending The New School, Marnell interned at beauty magazines, eventually earning the title of beauty assistant at Lucky in 2007. After moving to New York, she attended The New School in Greenwich Village to study nonfiction writing. She finished high school at Emerson Preparatory School in Northwest Washington, D.C. She was a strong student academically, but at 17 was expelled weeks before graduation. At 15, Marnell began attending Lawrence Academy in Groton, Massachusetts.

Her mother is a psychotherapist and her father is a psychiatrist. Marnell was born on Septemin Washington, D.C.

She is the author of the New York Times bestselling memoir How To Murder Your Life, which was published in 2017. She was a beauty editor at Lucky and XoJane, wrote a column for Vice, and has also written for Self, Nylon, and Glamour. From the Conde Nast building (where she rides the elevator alongside Anna Wintour) to seedy nightclubs, from doctors' offices and mental hospitals, Marnell shows-like no one else can-what it is like to live in the wild, chaotic, often sinister world of a young female addict who can't say no.Caitlin Elizabeth Marnell (born September 10, 1982) is an American writer and media commentator based in New York City. We see her fight between ambition and addiction and how, inevitably, her disease threatens everything she worked so hard to achieve. It continues to New York, where we follow Marnell's amphetamine-fueled rise from intern to editor through the beauty departments of NYLON, Teen Vogue, Glamour, and Lucky. It begins at a posh New England prep school-and with a prescription for Attention Deficit Disorder medication Ritalin. This is a tale of self-loathing, self-sabotage, and yes, self-tanner. She was also a 'doctor shopper' who manipulated Upper East Side psychiatrists for pills, pills, and more pills a lonely bulimic who spent hundreds of dollars a week on binge foods a promiscuous party girl who danced barefoot on banquets a weepy and hallucination-prone insomniac who would take anything-anything-to sleep. At twenty-six, Cat Marnell was an associate beauty editor at Lucky, one of the top fashion magazines in America-and that's all most people knew about her. 'From Cat Marnell, 'New York's enfant terrible' (The Telegraph), a candid and darkly humorous memoir of prescription drug addiction and self-sabotage, set in the glamorous world of fashion magazines and downtown nightclubs.

How to murder your life by cat marnell