Being on this site is a step in the right direction. I had been dramatically overweight since college (about 20 years ago). My weight went up and down quite a bit for a long time, but when I started on this site, tracking what I ate, paying attention to what and how much I was eating and tracking my workouts, I have lost over 60 pounds and have kept it off.
It requires a lifestyle change. Start small, set attainable goals, see them through and stick with it. Remember that there is no quick fix. It takes time and dedication and be ready for some setbacks. Just stick with it and persevere.