Yuo are going to get a lot of people telling you that calorie counting and exercise is the way to go (especially since you posted your question in the calorie counters forum)

....I wanna be first to say it worked for me! And it's because it's something I expect to be able to stay on the rest of my life. It's a lifestyle, not a diet....
To me, a successful plan is a personal thing, different stuff works for different people.
What about WW wasn't working for you? Maybe if we know more about you we can troubleshoot a little. What kind of exercise are you doing?