Miley Cyrus struggled to work out if she had her own opinions.

The 19-year-old star - who shot to fame after appearing in Disney show 'Hannah Montana' when she was just 12 years old - spent so long trying to cultivate an ''All-American'' image that she eventually needed to take a step back and figure out what she really wanted to say for herself.

She said: ''I feel I was so trained in my interviews to be All-American or whatever. I just got so set in the way of saying the same things I did when I was 12 years old.

''I had to smile so much and I had to say so much of the same thing. I finally had to look inside and say, 'What do I really think about this? Do I really think that or am I just trained to say that? Or have I said it for so many years now that that's what people expect me to say, so now I say it so I don't have to say something else and be creative?

''I guess I kind of realised that my whole life isn't one giant press junket. I don't have to be smiling all the time and always have the perfect answer.''

Miley - who is dating her 'The Last Song' co-star Liam Hemsworth - also admitted she can't understand why people have been critical of her racy outfits and thinks it is because they are ''scared'' by her self-confidence.

Speaking on 'The Conversation With Amanda De Cadenet', she said: ''People are so scared of seeing a woman being like, 'This is who I am and you're not going to change it.''

And while the singer-and-actress - whose father is country star Billy Ray Cyrus - never set out to be a sex symbol, she is happy for people to find her attractive.

She added: ''If people find that [I am a sex symbol], I take it as a compliment. Thank you for thinking I'm sexy!''