Ever since losing an impressive 18 kilos, 32-year-old Khloe Kardashian has been opening up about her previous weight struggles and her inspiring journey toward better physical and mental health.

“I used to just accept the way people defined me,” she told Refinery 29 last March. “When people called me the fat sister, I’d say, ‘Yeah I’m big-boned.’ Whatever we do to laugh at things instead of [letting] them hurt you. And then, I slowly but surely took something really bad in my life or a stressful time, which was my divorce, and I turned it into a positive.”

On Sunday, she posted a before and after photo of her transformation in preparation for the premiere her new E! show, Revenge Body with Khloe Kardashian, which airs on January 12.

If you were to ask me five years ago if I ever saw myself being completely in love with fitness and health. That I would be an inspiration to many others, that I would be the push that others needed to find their way. I would’ve laughed in your face. Me? The chubby one? No way! But now I can’t see myself ever stopping! I am completely honoured and taking my role seriously in helping motivate and teach people what I had to learn to better myself from the inside out. Becoming stronger mentally so I can’t let the little things break me down. I see myself only getting better and better! I can’t believe how far I have come! I almost can’t believe that was me! If you’ve lost your motivation don’t beat yourself up about it, negative thoughts only turn into negative realities. By keeping positive about your body, your inner health, your mental sanity, your fitness and what you’re trying to achieve, you’re way more likely to succeed. My fitness journey was for myself and myself alone. On my terms and on my timeline! Cheers to us becoming better than we were yesterday! #RevengeBody

A photo posted by Khloé (@khloekardashian) on

In photo to the left, she’s wearing a white one-strap dress at the Hollywood premiere of House Bunny in August 2008. In the photo on the left, she’s in a short white dress and thigh-high boots while out on the town in Miami with her boyfriend, Tristan Thompson, in September 2016. The outfits might be similar, but her body — and her overall health — is drastically different.

“If you were to ask me five years ago if I ever saw myself being completely in love with fitness and health. That I would be an inspiration to many others, that I would be the push that others needed to find their way. I would’ve laughed in your face,” she wrote in the caption. “But now I can’t see myself ever stopping! I am completely honoured and taking my role seriously in helping motivate and teach people what I had to learn to better myself from the inside out.”

She continued by offering up some motivational wisdom to others on their own fitness journeys.

“If you’ve lost your motivation, don’t beat yourself up about it, negative thoughts only turn into negative realities. By keeping positive about your body, your inner health, your mental sanity, your fitness and what you’re trying to achieve, you’re way more likely to succeed,” she wrote, ending by reminding us that our weight-loss journeys should be on our own terms and our own speeds because they’re for us and us alone.

“Cheers to us becoming better than we were yesterday!” she wrote.

Revenge Body with Khloé Kardashian airs on DStv channel 124, 23 January at 8pm.

Via Redbook