Mama June went through a complete makeover after undergoing weight loss surgery. But since the reality star is in hiding until her new show From Not to Hot premieres on Friday, Feb. 24, her daughters Alana (better known as Honey Boo Boo) and Lauryn (aka Pumpkin) are spilling secrets about her incredible transformation.

“She had gastric sleeve back in May of 2015, and then she slowly started losing weight, and the reason she got the gastric sleeve was because she hit a plateau — she couldn’t lose any weight,” Pumpkin told Entertainment Tonight. “And then it came to a point where [the trainer] had to step in because she hit another plateau with the gastric sleeve, and wasn’t losing any more weight.”

EXCLUSIVE: Mama June Reveals Her Best Diet Tips — Find out How She Slimmed Down!

Further surgeries removed excess skin because “her stomach started looking gross,” the 17-year-old explained. “It was hanging from where she lost so much weight, and her arms and her chin.” The former pageant mom also “got her boobies done” to match her newfound confidence, though it hasn’t been an easy road.

“I think that her biggest thing [she has to] overcome is that fact that she still thinks of herself as a bigger person… And I guess because she’s seen herself as a bigger person all these years, she doesn’t realize how small she is,” Pumpkin revealed of the 37-year-old, who went from 460 pounds to a size four.

Now, all fans can do is wait for the big reveal — and no one’s more excited than Mama June, who’s had to stay indoors for months. “It is very hard because mama, she is a very stubborn person, and she wants to do everything,” Pumpkin said. “She’s like, ‘Alright, I’ve got to go to the store,’ and we’re like, ‘Mama, no, you need to stay in the house because if somebody gets a picture with you…’”

Scroll through the gallery below for photos from the show’s trailer!