At 285 pounds, Lacey Bertram wasn't happy, but had "come to grips" with the fact that she would always be overweight.

"I gained weight simply by being what I would consider lazy, unmotivated and unfocused," the avid softball player reveals. But all of that changed when people stopped asking her to play and complained about her speed.

"I would overhear faster people complaining about having to bat behind me because I was so slow, I knew it was time to make a change," the 30-year-old shares. "I was simply tired of being the way I was."

lacey bertram

With a degree in Exercise Science, Bertram knew how to lose weight, but "lacked the motivation and desire" to do so.

But a June 2012 doctor visit — in which her physician said she showed signs of pre-diabetes and high cholesterol — served as a major wake-up call. A month later, she lost 30 pounds.

"I put myself on a strict diet, consuming around 1,200 calories a day," she shares. "I joined a gym and swallowed my pride in hiring a personal trainer for added accountability."

She also began running, and successfully completed her first 5K in April 2013. Now 115 pounds lighter, Bertram celebrated her achievement in a big way.

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"On my 30th birthday, I paid to have my hair and makeup done. I bought a new, bright red dress," she shares. "My friends had a get-together planned for me. I'll never forget the feeling of walking downstairs to friends, all dressed up, knowing that I did it."

Bertram's weight loss even inspired her soon-to-be-59-year-old mother to take up running! "Losing 115 pounds meant living and loving life as opposed to simply existing," she adds.

Read the entirety of Lacey Bertram's blog on the Huffington Post.

If you'd like to contact Lacey about her weight-loss success, please email her at laceybertram@hotmail.com or visit her Facebook page.