Fluffy sounds like you are doing everything right. Have you recently increased/altered your activity levels?
What would you typically consume in zero pointed food in a day? Do you eat much fruit? Portion control is key, but everyone’s idea of a portion can be completely different. I need large portions! 😃 One person may have a 1 small Egg whereas, I would have multiple large eggs. So what is the right portion size for you? It is like asking how long is a piece of string. Very difficult to define and you will need to find what works for you.
Take your measurements as well. I have seen some people not change weight at the scales, but they can get into smaller clothes as their body shape changes, for the better. Sometimes we place to much emphasis on the scales, which is understandable as we weigh every week!
Over the last 18 months I have been following the WW plan, I pretty much have a gain (anything up to 4lbs) once a month. I have also experiences several weeks where I am not losing, despite sticking to the plan. Despite feeling very frustrated at times I stick with it and eventually the scales start moving again. 147lbs lost so far, so it works.
I haven’t used the online coaches, but from what I gather, from posts I see elsewhere, it can be a bit hit and miss as to whether you get a good coach to chat with or a not so good one. Like with all things in life, some are better than others and some are more helpful than others. May be worth trying the online coach at different times. You may find a different one who is more helpful.