If you want to be successful with this, yes, you do need to count those carbs, at least until you get comfortable with knowing how many carbs are in a serving of the foods you eat most often. It's also going to be important as you progress through the different phases so that you know how many grams of carb you are adding or can add as you go and eventually know what level of carb intake you can maintain at.

Celery is permitted on induction; it's listed in the list of allowed veggies and it's delicious with cream cheese although cheese is limited on induction to no more than 3-4 ounces a day.