Anna Chlumsky felt like she was “for sale” as a child star. The 41-year-old actress shot to stardom playing Vada Sultenfuss in 1991’s ‘My Girl’, and she admits that her early success eventually became a burden. She explained: “I was lucky because I didn’t have any other huge traumas at the time. I’m the baseline of [child stardom] going relatively well. Yet it was only as an adult that I discovered any sense of reliability or security. “When I was a child those did not exist, because I was for sale.” Anna – who took a break from acting between 1999 and 2005 – thinks there’s a “huge societal bl…