Caroline Jhingory, "Half My Size" author

Caroline Jhingory says she spent the majority of her life as an overweight person. While attending Duke Ellington School of the Arts in Northwest, she weighed 270 pounds. By the time she got to college, she tipped the scale at more than 300 pounds.

“I don't remember feeling or being that daggone big,” explained Jhingory. “What was I eating? What was I thinking?”

Several years ago when her doctor told her she was pre-diabetic, Jhingory says she realized her life was in jeopardy. From that moment on she vowed to get in shape and listen to her doctor.

“To stop eating anything white, stop catching the bus and the subway. I want you to walk everywhere,” Jhingory said of her doctor’s orders.

In two months she dropped 26 pounds. After a year she shed 100 pounds. Six months later - another 50. She's now half the size she used to be. And even better, she's keeping it off.

“Now I do a combination of TRX training, and a little bit of cross-fit, one-to-one training with a personal trainer,” notes Jhingory.

Caroline works out with her trainer a couple of times a week. She continues her strict but healthy diet. She's even written a book about her transformation. Its titled “Half My Size” and she debuted it on Good Morning America.

This D.C. native is now headed on a national book and radio tour spreading her message that if you're at the end of your rope - just hold on.

“Rome wasn't built in a day,” said Jhingory. “You definitely need to be patient and consistent and you will get the results that you want.”