Hi - hope you don't mind a little advice from me (not sure they are exactly words of wisom!!)
Before you go searching for other forms of slimming world diets e.g 777 (I don't know it fully - so cant really explain) may I be as bold to suggest you stick to the basics first?
I have lost almost 4 stone now following the red or green plan - others I have seen on here and at group lose the same and more following EE. The plans work, there is no need for success express/777 unless there is exceptional circumstances.
As well as the good advice on going back to basics given by Princess Stevie I would also suggest reminding yourself why you want to lose weight and ask if your weight loss is more important to you than those crackers you are eating!!!
There is no need to go hungry while food optimising - it's all about making the right choices.
Best wishes and good luck making those RIGHT choices! x x