Hi CoCo, I started SW 6 weeks ago. I was so confused that 1st week and carried my SW "Bible" Book EVERYWHERE! Now I am quite confident about it and just remember on Green I weigh meat and Red I Weigh pasta, potatoes etc.
I like a bit of routine and I measure out my milk in the morning and put it in a separate drinks bottle, I then know how much I have used (and how many more cups of tea i can have!) So at breakfast i have already used my Healthy A and 1 B.
Stick with it, it will all be worth it at the end of the week and you step on those scales. You really will get the hang of it!