I've started my attempt to lose back in my junior year of high school when my doctor informed I was overweight (or obese as I recall, actually), but only for my height (though I recall she also stated that my height was what added to the weight). Combining that with my cousin occassionally mocking me for my eating habits (though I'm partially certain she was joking), I wanted to make a change, so I started walking home from school instead of taking the bus and dancing more (as outlandish as it sounds, Just Dance for the Wii somehow helped me lose 60+ lbs. when you change your diet). From there, into my senior year I was at 220 lbs.
As of now I'm at 249 lbs. but I did grow taller and possibly acquired muscle. I also exercise to at least appear as attractive, gain superhuman strength...and the booty (because everyone likes the booty?