Kirstie Alley finally admits that she has regained all the weight she lost back in 2007. Two years ago, the actress sought fame by losing 75 lbs. through the Jenny Craig diet regimen which she enrolled in, and she says it’s all her fault.

“I said, ‘I’m going to cut myself some slack,’” the actress told Oprah last Thursday. “Big mistake.”

Alley reveals that she transformed her home gym into a dining room, mainly because she wasn’t able to go to a lot of dinner parties during her weight loss regimen.

Now, the 58-year old actress is once again determined to lose all those extra pounds.

“I’m going to be in a bikini again,” she vows.

Alley was once a spokesperson for the Jenny Craig weight-loss program for almost three years until she left to promote her own weight-loss product. Jenny Craig meanwhile maintains a good friendly relationship with Alley, and remains supportive of her, according to the fitness guru’s reps.

See some pics of Kirstie Alley during her on-off battle with weight loss: