"I was a troubled kid. I felt like an outsider. I didn't feel like I belonged, especially in the classroom. I just wish that I would have been more secure. It''s that trap of thinking there's nothing beyond high school," the Daily Express quoted her as telling Parade magazine.
However, The Million Dollar Baby star now looks forward to play difficult roles that are challenging.
She said: "Now, I long to play characters that challenge me and scare me and make me learn new things about the world, about myself and about my art. I'm a girl from a trailer park. I never imagined winning an Academy Award, much less two. I just wanted to act."