Kirstie Alley is a “fat actress” once again — and she’s not done telling us about it.

“I started screaming. It said 228 lbs., which is my highest weight ever. I was so much more disgusting than I thought!”

“My food demons are Chinese food, sugar, butter. A lot of butter,” the former Cheers star says of her eating habits.

“If I’m at the movies, usually I eat popcorn without butter, but I’d say, ‘I’m at the movies, so who cares?’ And toast with butter. Or let’s say I had two cups of pasta and six tablespoons of butter on it. There was a lot of butter going on.”

During her three-year stint as a spokeswoman for national weight loss chain Jenny Craig, Kirstie, now 58, lost 75 lbs. and slimmed down to 145 lbs., but the star says her progress started to go downhill once her contract with Jenny was up and there was no support system around to keep her exercising and eating healthy.

“When you’re a spokesperson for Jenny Craig, there’s responsibility,” Kirstie told PEOPLE. “You have a person every week standing over you when you get on the scale, and I did it naked because those panties could weigh 30lbs.”

“It was amazingly successful. But the first nail in the coffin was when I didn’t have to weigh in. I just sort of went wild.”

She added: “I messed up along the way, but I’m not going to concentrate on that. I’m gonna go, ‘You know what? Get back on the horse, lose the freakin’ weight, and then just move forward!’”