my weight was around 286 lbs and i've lost 130 lbs over the course of ~2 years. - i stopped trying to lose weight after 1 1/2 years but i still did.
i didnt do any kind of sport, i just watched what i was eating. writing it down also helped . i dont know how much calories i was usually eating but i went down to ~1200-1500 calories a day. now i'm trying to stay at 1700 but its really hard to eat so much lol