Find out what bombshells Rosie reveals in 'Celebrity Detox' here first!

ROSIE O'DONNELL's blistering new tell-all, Celebrity Detox, is stirring up big-time controversy -- and ET has a first look at what's inside!

In the book, out October 9, the former "View" co-host opens up about her relationship with BARBARA WALTERS, saying that they didn't always get along -- and sometimes even fought over certain issues of control.

"I did not do whatever Barbara Walters asked," says Rosie on page nine. "In fact, I did very little of what she asked."

In the book, Rosie prints a letter that she wrote to her brother in which she clearly didn't feel she was allowed to be herself on the air. She writes, "There is no way I can stay on this show. It is everything I am not. It's called 'The View,' but that's a misnomer; it's really a view, one view, ABC's view, and I'm not a parrot or a puppet ... I'm never going to be accepted here."

Rosie also sent Barbara an advance copy of her book, in which she suggests the "View" clan matron should retire, saying, "At some point, a person gets tired. It's inevitable."

Last May, Rosie exited "The View" three weeks earlier than her planned departure, just days after she and conservative co-host ELISABETH HASSELBECK got into a heated on-air dispute regarding the war in Iraq that, at times, turned personal.

On Elisabeth, Rosie writes: "Elisabeth, antiabortion, pro Bush, pro war, believes in everything I don't, and I believe in everything she doesn't. She's as slender as I am fat, as restrained as I am vociferous, as polite as I am frank," adding, "Right from the start I could see in this slip of a girl so different from me, I could see something fierce, a fist in the frill, and I liked that. But we had no language in common."

As for Rosie's much-publicized battle with DONALD TRUMP, she writes: "I started to feel somewhat sorry for him. I also started to see that he was not a man. He had once maybe been a man, or a boy, but that human spirit seemed to have gotten lost to a mechanical repetitive meanness, a push-button person with its circuits askew."

Another stunning revelation leaked from the book has Rosie writing about using a bat to break her own bones as a child, saying, "My hands and fingers usually. No one knew. It was my secret."

Why would she do such a thing to herself? Rosie writes that she did it as "proof I had some value, enough to be fixed." She also writes, "There were many benefits to having a cast. In the middle of the night, it was a weapon." But she never addresses why she might need a weapon.

Stay tuned to ET for more!