"I didn't know how to do it; I didn't know how to engage with it; it stressed me out. And people would say, 'You just have to be yourself,' and I was like, 'But I don't know who that is yet!", she added.
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Anne Hathaway won her first Oscar in 2013
The 31-year-old actress has played Catwoman in Christopher Nolan's Batman franchise, won an Oscar for her role in Les Miserables, and played a princess alongside Julie Andrews in The Princess Diaries, but speaking to Elle magazine she revealed it's only been this past year that she has learnt to relax.
"The thing I’ve learned this past year is to chill out. I think when you’re young and struggling to find yourself, there’s something alluring about the idea of being tortured.
"Life for me these days is a lot about letting the unknown be wonderful, and letting myself feel safe."
Anne Hathaway filming her new comedy The Intern with Robert De Niro
Anne married her partner Adam Shulman nearly two years ago, and speaking of her relationship, she said: "There was a part of me that I was keeping in reserve, and when I got married, something shifted…That question of, 'How long’s this gonna last?' is off the table. And when you’re not worried about that, there’s space to just be silly."
Anne is currently promoting her new film Interstellar, which also stars Matthew McConaughey and Jessica Chastain.
A mysterious sci-fi adventure, the film follows Matthew and Anne's characters as a group of explorers discover a wormhole and use it to attempt to pass the current limitations on human space travel and conquer the vast distances involved in an interstellar voyage.
Interstellar is out in the UK on 7 November 2014