Adams, 38, who has been nominated for four Oscars, said she is never going to enjoy being the centre of attention, reported Daily Telegraph.
"I graduated high school and I didn't have a skill set and I didn't want to go to college. I needed a job. This is what I could do. And I like it, but it can be very painful. You feel so vulnerable all the time on set, so exposed," she said.
"But I had that same feeling of being exposed when I was a waitress, I have it at parties, I have it here. I'd love to be a diva. But I'd then have to send so many apology notes for my abhorrent behaviour," she added.
She recalls that she was feeling completely unprepared for the way her life changed and the amount of attention she received.
"I choked. I felt this pressure to suddenly be this level of actress that I wasn't confident enough to be. I did a series of really bad auditions, I let the nerves get the best of me.