Victoria, I missed seeing your post last month but thought I might be able to give you some helpful advice. I regret I know nothing about insulin and the other medication that you take as I rely on diet alone to control my diabetes. What I would advise though is that you go on a low carb diet and read a lot about its benefits. I used to have porridge for breakfast but when I found it was putting my meter readings up too much, I stopped having it. I now have avocado pear and cottage cheese for breakfast, but I know it is not to every-ones taste. I try to avoid anything that puts my meter readings above 10.
Fortunately, I came across this support forum two days after I was diagnosed and everyone on here was so helpful. I have been following a low carb diet for 4 years now and my GP is really pleased with how well I have done in keeping down my HbA1c readings. My other ailments such as kidney and heart failure have also improved since I have taken control of my blood sugar levels through my diet. In fact last Friday I had a diabetic review with my GP and she said that my kidney levels were now almost back to normal. I was discharged from the heart failure clinic about a year ago as I am no longer becoming breathless. With these vital organs showing so much improvement, I must be doing something right.
You are probably aware that in recent years many medical experts are now saying that the advice given by the NHS to diabetics, especially in relation to the "Eatwell Plate", is completely wrong. After reading a lot on forums and the web about low carb diets, I have read several books on the subject.
A book I really recommend is: "The Real Meal Revolution: The Radical, Sustainable Approach to Healthy Eating" by Professor Tim Noakes and Jonno Proudfoot. It can be found here:https://www.amazon.co.uk/Real-Meal-Revolution-Sustainable-Approach/dp/1472135695/ref=sr_1_1?ie=UTF8&qid=1518992913&sr=8-1&keywords=noakes+meal+revolution
The Real Meal Revolution also has updated information about cholesterol, which you could well find interesting.
I have just purchased another book which arrived two days ago so I have only had time to read the first two chapters. It is very informative too and extremely interesting.
"Low Carb, High Fat Food Revolution" by Andreas Eenfeldt https://www.amazon.co.uk/gp/product/1510713875/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
Alan Shanley, who replied to you on 23rd of January has also written an excellent book called "What on Earth can I eat?". if you follow the "Breakfasts" link that he gave you, it will lead you to his book.
Victoria, Your bg levels have certainly been high and I do think you would find the books I have mentioned helpful. I am sorry that I am unable to help you on insulin matters.