Hi
@Juliecov. Good to hear you are making progress.
I'm going to change your question! Instead of asking whether monitoring
is useful it is better to ask whether it
can be useful. The answer to the second question is a resounding yes. Used well, wisely and systematically, daily testing will help you to sort out just how your system reacts to different food stuffs and allow you to tailor your diet to suit you. Random bodging and then fretting about individual results does not get you very far.
Essentially, what you are looking for is the rise you get in BG after eating. You do this by testing before you eat and a fixed time afterwards. Most suggest 2 hours. Then you start looking for patterns by keeping a food diary alongside the results you get. Then you can start experimenting with what you eat to see if the patterns change. You end up by adjusting your diet to cut back on things that give the bigger rises. It takes a bit of time and application of good old common sense but in the end it works a treat.
One of the things I found early on was that one of the carbs my system seemed to efficiently turn into blood glucose was wheat flour. A change in bread, forgoing cakes and finding out how to thicken sauces without using a roux sorted that and it was the rapid feed back from systematic testing which made it happen. My favourite muesli had to go when I quickly found that it was the dried fruit and not the oats which were giving me double figures mid morning. Just had to find something that did not have the dried fruit.
So, daily testing is not a magic answer to all problems but used thoughtfully with and understanding of what you are after it is a brilliant way of getting your diet adjusted to suit your system. I use the word adjusted rather than changed quite deliberately. I reckon that adjustments are easier to implement and more likely to be maintained than wholesale changes.