Lindsay: 'What Was I Thinking?'

Lindsay Lohan is finally opening up about her wild ways, double DUI's and stint in jail, and she has one thing to say about it: "What was I thinking?"

Lindsay, 21, tells the new issue of Harper's Bazaar that her father Michael's absence from her life may have contributed to her downward spiral into booze and drugs.

"Not seeing my father was really hard for me, and not being with my family enough," she explains. "I wasn’t taking any time to just sit and live and breathe."

But a stint in Utah's Cirque Lodge helped her on the road to sobriety.

"Being away and going to a place where I could learn about that and take the time with a clear mind to get back on the right track was nice," she says.