carbs are easier but can mess with control...if you increase protein to 100g or so, you may need to bolus for some of it, robert and spiker and a few others do LCHF for good BG results..ask lots of questions and google TAG total available glucose for advanced bolus stuff.
You shouldn't need to bolus for protein if your eating carbs with your meals Beckie, only those on insulin who very low-carb need to do this as a general rule.
Pleased you enjoyed your KFC, nothing wrong with an occasional treat
At 100g carbs, you probably won't need to bolus for protein unless you have a high protein meal (large steak). You could increase your fats a bit by having cream in your coffee, butter on your veg, olive oil on your salad.