Hi HelenTracy,
A couple of years ago I was really fed up with my shape and size. I've done both SW and WW in the past and both worked for me until I stopped going to meetings, moved house, etc.
I did a lot of research into Fasting diets - namely 5:2 - and went ahead and bought the book and the recipe book. I dropped a couple of dress sizes in 6 weeks and the first couple of weeks were awfully difficult... but there's a really great Facebook group for support and ideas to help you stick to it.
I'm still a happy 12/14 and base my weight gains on how I feel and how my clothes fit. The health benefits of fasting are well-documented too and it helped me avoid over-indulging during the Christmas season that year - though I still thoroughly enjoyed my festive food and drink!
It's not everyone's cup of tea, but it is a very good way to tone up and feel good about yourself. I now eat more sensibly and fast occasionally, more for the detox effect once a month or so.
Good luck and I hope you find something that works for you! 