I strongly recommend you try the free My FitnessPal.com. It is eye opening. It teaches portion control by showing you how many calories are in the amount of each food at each meal you are eating.
Slimming world can be confusing as it encourages people to eat lots of so called free foods, but that doesn't help those of us who binge out of boredom or stress. SW gives you the food balances and menus, but not the portion sizes.
I have eaten what I thought was a healthy well balanced diet for years, no added sugar, loads of fruit and fat free yogurt, very little meat and cheese, plenty of veg, no processed foods, and still I am fat. Why? because on my bad days I have been binging on "healthy" foods - a whole large pot of fat free yogurt with added honey on my dessert spoon.
or whole punnets of grapes
or unweighed amounts of rice or buckwheat ....or 6 bananas in a day...sometimes whole packets of nuts or dates or figs ..
and it all adds up, and how.. (not binging like this every day but obviously often enough to make me 1 1/2 stones overweight)
When I started to record these binge/healthy foods on myfitnesspal, I was so shocked at the amount of calories I have been eating. No wonder.....
.All became clear in an instant. Even my favourite, healthy microwaved fresh salmon with lemon juice, was high in calories at the amount I was eating.
So now before or immediately after every mealtime I record my meal on FitnessPal to watch my portion sizes, and my meals are based on the balance of foods advocated by Slimming world. The combination of SW and myfitness pal is working for me.
Do try it. It is really really helpful, it is educational, it is interesting.
I think if I persist with it, it will help me change my life.
It also gives you the breakdown of sugars, carbohydrates etc in each food which I expect, as a nurse, you will be interested in.
Another thing that works for me is to never allow highly calorific items into the house. I know I have no self control, so for example, no cakes, no hard cheese, no cream, are allowed through the door, and only one bag of nuts, one punnet of grapes, per week in the shopping basket.
The other thing SW teaches is to prepare meal plans and for snacks in advance so when you're tired, you have the right thing to immediately to hand. eg a salad or a chunky soup made in advance will fill you up, and when you have a craving for sugar, eat melon or a Satsuma, or a sweet bell pepper (for sweetness and when you really really need to crunch something). Your palate will adjust and after a while you'll find those cakes unbearably sweet and claggy.
I have also found this Jan, that exercising (group dance classes are great fun) makes me energised and pleasantly tired, and takes up time and gets rid of my stress, so I have less time to be bored and I don't need to binge or comfort eat.
Hope some of this helps.