updated 08/06/2012 AT 3:00 PM ET
•originally published 08/06/2012 AT 4:00 PM ET
The Alaska native, 21, said during her time on ABC’s hit series that she didn’t notice any changes in her body except for toned legs. But this time around, on season 15’s all-star edition, which premieres Sept. 24, Palin is hoping for a different outcome.
“My goal [is] not to gain any weight,” the young mom recently told PEOPLE during the Television Critics Association summer tour in Beverly Hills. “I think it’s hurtful for any girl when someone’s criticizing their weight on a national level. It’s an awkward position.”
Another goal? Palin plans to take the competition “as serious as I took it last time,” she says. “If I get voted off week one, then I get voted off week one. Hopefully I stick in there longer.”