The way my keto diet works is I try to stay at 50 grams of carbs a day or less. Ideally I like to be around 30. If you have not done it before be prepared that your body will react to it. I was tired at first and had very thirsty all the time when I first started.

My carb up days are Friday at 4pm till Saturday at midnight. I eat regular amounts of carbs while keep my fat grams very low. Like I stated before read all your food labels. If you do not know what is in it don't eat it. You want your body to stay in ketosis because that is when it is burning fat instead of carbs. That is why I eat the same foods day in and day out. If you research enough you can make some keto foods that will replace carb foods to get rid of that craving.