Stories of people who have drastically turned their life around?

Just as the title says. Looking for stories of people that made significant changes in their lives for the better. Could be losing 15lbs and getting that beach bod you've always wanted, or seeing both extremes like going from poverty to wealth. I'm always looking for stories of success, but it's extra special when they were the underdog.

Stories of people who have drastically turned their life around?
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