Former Dance Moms star Abby Lee Miller posted a photo (since deleted) on Instagram on Jan. 21 — and was nearly unrecognizable. That’s because Abby, 51, who is serving a year-long prison sentence for bankruptcy fraud, underwent gastric sleeve surgery shortly before entering prison in July, and has since dropped a reported 100 pounds from her 5-foot-8 frame.

But that’s not all that’s changed about her. “Sometimes in life you make mistakes. I trusted the wrong people and didn’t pay any attention to things I should of. I’m more than sorry for the mistakes I have made,” she wrote in the caption. “My world flipped upside down when I had to enter prison. I did so with grace, the stories you read about me been [sic] a princess are untrue. I have made friends with both inmates and staff, I’ve tried to better myself, participated in anything offered to me, and I am a better person for this experience.” It sounds like life behind bars agrees with her!

abby lee miller

Abby in 2013 (left) vs. 2015. (Photo Credit: Getty Images)

She also hinted at an early release. “All the press stories and speculation are not entirely correct however, I am feeling hopeful but no dates have been confirmed at this time,” she shared. “I am feeling great and ready to turn over a new leaf. thank you so much to everyone for your support especially my nearest and dearest I love you all (and yes this is me in prison).” Abby is supposed to stay behind bars for 366 days, but Entertainment Tonight reports she could be released as soon as Feb. 20. She will then have to check into a halfway house in Van Nuys, CA.

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A source told ET that Abby feels “great” after her transformation and that she’s thinking about getting plastic surgery! The reality star allegedly wants a tummy tuck, breast lift, and her excess skin removed as soon as she gets out of the clink.

“I’ve always put everybody else’s child first before my own health,” she said. “Everybody else was dressed and out the door and looking perfect and I was running around trying to find a clean towel to take a shower with, so I think this will be a little ‘me’ time.” We’re happy to hear that Abby is doing better than expected!

Hear what Dance Moms star Chloe Lukasiak has said about working with Abby by watching the video below!