My heart goes out to you.
But I'm wondering why you are quitting WW when for the last 2 weeks it has worked very well for you ??
I'm thinking that you will do LC for 2 weeks and then try something else. You have already admitted that you have no staying power.

With Low-carbing, you and your will power are on your own.
It sounds to me as though you need real support. Have you tried Over-eaters anonymous ? Have you tried going to a slimming club with a friend for support ? Have you spoken to your Doctor for advice ?

Also have you tried Slimming World ? In a nutshell, it's basically l-carbing one day, then carbs only the next. I know many people who have successfully tried this eating plan and lost stones in weight.

I wish you all the best
Ali