First of all, congratulations!! Personally, I really don't understand how slimming world can work when it's got syn free eat as much as you want foods! So I guess the first question to ask yourself is, are you eating too much of those foods? Weight Watchers is certainly more structured I think, it's more set out exactly how much you can have. Or there's Rosemary Conley classes which are exercise and then you get a personalised meal plan. Water definitely helps! Try and have 2 litres a day if you can. I know it's hard though, I struggle. And exercise will definitely help you as well, start small and build your way up. Because you don't have a lot to lose you probably will find that you have slightly slower losses though. You've got plenty of time, you'll get there!