Jessica Simpson s life has been a public affair, but now the singer is sharing some of her most private struggles, including her battle with addiction.

The pop star-turned-billion-dollar businesswoman has penned a powerful new memoir, Open Book, in which she reveals childhood sexual abuse led her to self-medicate with alcohol and stimulants, according to People , which published exclusive excerpts from the book on Wednesday.

The downward spiral ended with Simpson getting sober in 2017 after hitting rock bottom. Now, shes looking back on her highs and lows in hopes of helping others who might be struggling.

I was killing myself with all the drinking and pills, Simpson writes in the memoir.