Conner Rensch once weighed 123kg. Now she's halved her size.

Just 18 years old and weighing in at 123kgs, Conner Rensch was looking to a life marred by obesity and health complications.

“I knew I was overweight when I was six,” Rensch, told Good Morning America, noting that she first dieted in year three of primary school. A chronic overeater for the entirety of her childhood and adolescence, the hairstylist’s typical dinner would consist of “three big bowls of creamy chicken pasta with fried chicken, a small loaf of sourdough bread and a piece of cheesecake”.

Then, one day Rensch got out of bed, looked at herself in the mirror and decided ‘enough is enough’.

At that moment, she turned a page on her weight struggle. And today? Conner Rensch looks like this:

A photo posted by Conner Rensch (@crensch) on Aug 15, 2015 at 12:06pm PDT

“I always look back on the little things,” the now 26-year-old wrote to her 73,000 strong Instagram following late last year. “Being able to wrap a towel around myself, having someone hug me and not feel uncomfortable, going into a store and knowing they have my size.

“These are the moments that have forever changed me.”

Weighing in today at 63 kilograms, Rensch says she’s never been healthier or happier. “I’m just happier,” the fitness junkie told the GMA hosts. “I can be myself without this covering me up. I think that’s the best thing about it.”

Now, Rensch not only feels comfortable in a pair of togs, but competes in body building competitions around the US, constantly reminding her followers that “motivation comes from within” and to “get moving”.  Her core message for those struggling with weight issues? “Set your mind to it. Achieve your goals. You got this!!!” 

To all who think it can’t be done. IT CAN. #hardwork #LETSGO @trainandtransform A photo posted by Conner Rensch (@crensch) on Jun 20, 2015 at 9:23am PDT

As for her stretch-marks, Rensch says they are simply reminders of her journey, and not something to be ashamed of. “I have stretch marks and scars. They tell a story and that is beautiful,” she wrote on her website, My Butterfly Journey.

“This was a lifestyle change, not just a diet, and now I control those things that used to control me.”

I don’t think I have ever felt this good in my entire life! Today was such a beautiful day, and I realize that it’s going to be the start of something awesome. Today I’ve never felt better about myself both inside and out. Enjoy the ride ;) #shelifts #fitness #workout

A photo posted by Conner Rensch (@crensch) on Nov 22, 2014 at 9:59pm PST

All we can say is ‘w-o-a-h’. This lady is seriously awesome and a total BOSS. So, if you’re ever sluggish to get off the couch, we think you’ve just found your inspiration.

Conner Rensch, you are just incredible.

After some workout inspo? Watch Mamamia’s podcast producer, Lizzie, do a workout with Sam Wood.