The 20-year-old star said she was never very good at playing the sweet little girl like Disney producers wanted her to, reported Daily Star.
"I don't think I've ever had to exorcise Hannah because I think people knew I was different from her in real life. Most people on Disney act as if they are really like their characters but I never felt the need to do that," she said.
"I never pretended I was as good as what Disney writes. They try to make someone not grow up but you can't do that to real, normal people," she added.