If weight-loss is among your new year's resolutions, you'll find this clip inspiring. On the premiere of 'I Used to Be Fat' (Wed., 10PM ET on MTV), Gabriella goes from being unable to complete a workout to conquering a rock wall.
Initially, the high school senior has 111 days left of personal training with Katie, and push-ups wear her out. With 55 days to go, she's visibly thinner, but her weight still hinders her from climbing a rock wall. Finally, 90 pounds lighter, Gabriella easily reaches the top, to the cheers of her trainer and family.
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