For me it was learning what foods had more or less carbs.
We can pretty much guess that all of the whites are the highest carb counts like rice, potatoes, bread, pasta but if you want to eat a wide variety, more than just meat, it's good to have a carb counter of some sort. I like it in book form because I can just flip back and forth and mix and match what will add up to the carb count I want.

Lots of the old Atkins books have a carb counter in the back section. I also found a little pocket sized carb counter. Find them used for $1 at thrift shop or on Amazon.

Carbs hide in so many places like in sauces, dressings, imitation cheese, along with sugar which is in some processed meats, so it's good to read the labels and choose the ones that have those lowest carb count.

If you have the right food on hand, you will succeed, easily!