You mentioned ketone strips. If they are the urine strips they are useful to see if you are in ketosis, fat burning mode, but be aware they are not completely accurate but are a good guide to how you are doing. The blood strips are way too expensive but more accurate. I have a blood glucose monitor and went through a phase of testing to see how I react to dairy, protein, cream, coffee etc. I rarely do it now as I want this way of eating to be as simple as possible, but again, a useful tool starting out.
my children regularly make themselves smoothies, bacon (2 minutes in the microwave covered with kitchen paper), scrambled eggs with cheese in the microwave (mix 2 eggs, cheese, milk – 1 minute, stir, 30 seconds, stir, 30 seconds, stir). They used to moan and complain there are no cereals in the house, but they have learned to cook their own breakfasts and look for what ingredients we have rather than reach for a box of cornflakes