Lindsay Lohan talked to Oprah last night and said she's serious about turning her life around this time.

She said, "In this case, I wasn't fighting at all.  I just let go and was able to just be like, 'OK you probably do know what's best, because my idea of doing what's best for me has not worked in the past."

She said that alcohol is her drug of choice. She tried cocaine 10 or 15 times and hated it.

She added that she's not even on any prescriptions, except for Nexium . . . which is for acid reflux.

She said, "I feel whole again, and I have such a desire to want to keep this feeling and stay this way, and I'm willing to do whatever it takes."