Yes. I had the same thing happen to me, until I did the Master Cleanse at the beginning of the summer last year for 12 days. It totally changed my life, my weight, my eating habits for the better. I have kept the weight off that I lost and have never been healthier. I plan on doing another cleanse at the beginning of this summer. I think the other thing that help keep the weight off is strength training.
My husband thinks I am too skinny, but I work out six days a week, distance run, teach high school, am doing my Masters at University, have three kids, and I'm not feeling exhausted (...for the most part :)
I know that some people say you can work and function regularly during the Master Cleanse, but I felt much better being able to focus and pace myself. I had to use the bathroom a lot and I couldn't see myself doing this while teaching. If you do decide to go this route, make sure you are fully committed. It took me a year of thinking about it to commit to it, and the first three days were really difficult. By day 4, it was smooth sailing and I could have kept going, but my husband was somewhat paniced about my dramatic weight loss, and we were going camping the next day, so I slowly transitioned back to eating solids.
I can't tell from my own experience as I've started quite recently. However, I've read about people who had been raw for a significant time and felt like reaching a plateau, and who experienced a boost in the diet's benefits by consuming a lot of leafy green vegetables. Are you consuming many of those?
Leafy greens aren't very tasty at the beginning but they make a quite nice mix when blended with some bananas, berries and water. Boutenko's book Green for Life has some useful ino (and recipes) specifically on greens.