AceShowbiz - Lindsay Lohan is set to tell all about her life and career - she's writing her autobiography. The "Georgia Rule" actress is piecing together her life story for the new book, documenting her rise to fame as well as her chaotic personal life.

She tells Britain's OK! magazine, "I write a lot and it's very therapeutic for me because then I can see what's happening on paper. I've started writing a book. It's going to take a while, all my life experiences. I started writing it a year ago. There's a lot to put down, you know?"

Beside revealing her plan for having a memoir, Lindsay Lohan also shares about her last two stints in rehab. She tells the publication, "The second two times I went to rehab, I had to go because it was a court thing. It was an obligation. I had to do it to stay out of getting any jail time. And I took responsibility for that. And it was like a vacation."