By Alexis Tereszcuk - Breaking Celebrity News Entertainment Editor

Jennie Garth went through a painful divorce from her husband Peter Facinelli in 2011, but she got her revenge by dropping 30 pounds and revealing a kick [expletive] new body -- but she says it wasn’t easy, and it isn’t easy to maintain her killer figure!

"I weigh myself every morning,” Jennie told Health magazine in a new interview.

“If I don't, before you know it, I'll be up 10 pounds. It creeps. This morning, it was up 2 pounds. That's OK. But if it's up 6 pounds? I need to make adjustments."

The 40-year-old actress said that breakup from her husband of 11 years was a wake-up call for her.

"Now I feel stronger and more confident in my body,” she said.

Jennie said she has rules that she follows to stay in great shape: she puts on her workout clothes first thing in the morning.

“I take my kids to school in my workout clothes. I'll think, 'I'm already in my clothes now, so I may as well work out!'"