Welcome to the forum
@JaguarLandy
Sorry to hear that your readings are remaining high despite increases in medication.
Have you been making changes to the amount to total carbohydrates to balance with the support the meds are giving your metabolism? It is usually an important part of the puzzle to keep the three (food, meds and levels of activity) in balance and supporting each other.
While there are obvious things like cakes, biscuits, sweets and sugary drinks that you probably cut out straight away, you might be surprised how much *all* carbohydrate affects your BG levels, including rice, pasta, potatoes, bread, pastry, grains, cereals and many fruits.
You can use a BG meter, taking a reading before and again 2hrs after eating, to see what the differences are, to identify any carbs that seem to be spiking BG (initially in a way the numbers themselves matter less than the differences between them). Ideally you would want the rise between the before and after readings to be 2-3mmol/L or less.
Once you can see how you respond to different meals, and which are breaking through that 2-3mmol/L limit, you can begin experimenting with reducing portions of carbs and/or trying different types (sometimes just having things at a different time of day makes a difference), or swapping for lower carb alternatives like cauli ‘rice’ and celeriac mash.
Do you think an approach like that might help?