Sophie Turner feels like a “competition winner” around other celebrities. The 26-year-old actress – who is married to Joe Jonas – has confessed to being “really bad” around other big-name stars. Sophie – who has Willa, 20 months, with Joe – said: “I can’t quite fathom [that] I’m actually invited to these things and I’m not a competition winner, you know? “Every celebrity I come into contact with, I act up or say something stupid. And recently, it’s been if a celebrity interacts with me, I immediately just shut them down and I’m like, ‘I don’t want anything to do with you.'” The ‘Game of Throne…