I must have been similar to you but 5 years ago. My levels kept rising until the Dr said ok insulin. It was the best thing I’ve done for years. Yes it’s a pain in the backside to keep testing and injecting but my results started to improve immediately. Then I discovered low carb and my HbA1c levels are now about 34 all the time. At the same time I reduced drastically the number of units of insulin I was injecting. Have you tried low carb? It isn’t difficult and you don’t have to cut them out completely just be careful and have very small portions, for example last night I had 2 small roast potatoes with my dinner (normally no potatoes at all) and my next finger test was just a tad higher than normal. I rarely eat bread, rice, pasta or potatoes, but if I do I try to have it at lunch time so that I can use up the energy during the afternoon. Of course all the other stuff like biscuits, cakes, crisps, pizza, fruit juice, sweets and chocolate are not allowed.