admits taking part in so many romantic comedies has derailed her career.
The State of Affairs star said she regrets for not taking more challenging roles, reported Ace Showbiz.
"I had an amazing time. I love romantic comedies. I was so stoked to be doing them. But maybe I hit it a little too hard. I couldn't say no. There's nothing wrong with them, but maybe I overloaded my audience. I should have done a superhero movie or a psychological thriller," the mother of two said.
"I stopped challenging myself. It became a bit by rote and, as a creative person that can wear you down.
"That was part of why I took that time off, to ask myself, 'What do I want? What am I looking for?' and shut down all the noise," she added.
Heigl, 35, has now returned to television. She is playing a main character on NBC's new drama series State of Affairs.