Lohan tells Oprah: I'm my own worst enemy

Lindsay Lohan believes she is her "own worst enemy".

'The Canyons' star, who completed 90-days of court-ordered treatment in rehab on July 31, as part of a plea deal to avoid jail after violating her probation by lying to police about driving during a car accident last year, appears to be eager to take responsibility for her problems and legal troubles.