Lindsay Lohan I Need Rehab, Not Jail

9/25/2010 9:00 AM PDT

Lindsay Lohan -- I Need Rehab, Not Jail

Lindsay Lohan confessed to her friends this week that she needed to go back to rehab -- not jail -- if she was going to defeat her addiction demons ... TMZ has learned.

Sources tell TMZ Lindsay was surprisingly self-aware that she made a big mistake by falling off the wagon and testing positive for cocaine -- and that she couldn't fight her disease alone.

We're told Lindsay was also aware that her relapse had "ruined a lot" in connection to the revival of her career.

And there's this ... Lindsay was "remarkably unafraid" about the possibility of going back to jail -- but at the same time, she didn't expect Judge Elden Fox to send her back to Lynwood Correctional Facility.