Firstly I'd like to congratulate you on the weight you've already lost... its hard to lose weight, even 500 grams!
Secondly I'd like to share the only bit of experience I have with WW....
I have had 2 girlfriends go through WW & they both told me they didnt like the weigh ins (is that the same as a meeting?) Anyway one stopped going, she continued to eat the WW food from the supermarket & count points etc but she did put weight back on. My other friend seems to have lost a good amount of weight. So from my experience (or my friends' experiences) the weigh ins may be boring or frustrating but I think they serve a purpose. Now this may not happen to you but it did to my friend.
I wish you all the luck in the world!! You're such a lovely person & I enjoyed our chats last weekend at the dinner
I'm hoping to see a BFP for you in November... good luck!
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