[MargaretR]

Weightwatchers does work - I went in the early 60s when they held meets at the library (maybe still do). It was expensive to enrol and there was a weekly fee, but worth it at the time. I lost 6lb in the first week and got a 'cheer' from the others. The first week on it always produces the biggest weekly loss.
It did teach me about dietary balance. I remember that my greengrocery costs quadrupled.
If the cost of Weightwatchers has risen a lot (likely) you have to rely on self discipline and dietary info on health sites.
I find it easier now I only cook for me. It must be hard for those whose 'other half' still wants all those 'forbidden' items, and who gloat while you watch them eat them