Margot Robbie has been on a roll juggling multiple movies and the actor says her friends are worried about her and feel she will “burn out”. The 27-year-old actor, whose performance in the biopic “I, Tonya” is being touted as Oscar-worthy, said she finds it difficult to say no to good opportunities that come her way. “Things are crazy right now. I’ve done four films this year. More than I’ve ever done. People are like, ‘You should slow down, you’re gonna burn out’. It’s insane and I’m exhausted, but I’m so happy and grateful. I don’t need sleep. I want to direct and produce in the future. I want to keep the ball rolling,” Robbie told Grazia UK magazine.