I suggest that your diabetes may have been caught at an early stage, when you were still producing quite a lot of insulin yourself. Treatment with pioglitazone and gliclazide over a prolonged period can wipe out the beta cell activity and you'll have no insulin production left. there's not much to be done then, but to take insulin. If you are very insulin resistant, you may need large doses and even some Metformin on top. they say that insulin resistance can be helped by exercise. 45 mins a day, 5 days a week of aerobic exercise. doesn't need to be the gym. Just take a dog a brisk walk. Borrow one if you don't have your own.
You seem to have received the standard treatment and advice on diet. Read the success story thread and you'll see that most of the people who have T2 under control, eat restricted carbs. I personally wouldn't dare have a couple of pieces of toast, because I'd be flying on a sugar high.
You cannot do yourself any damage by cutting down on the carbs( whatever THEY say) Try it for a few days, with the exercise too and see how the numbers go.
THEY believe that T2 is progressive and their advice and treatment fulfills the prophecy.
DISCLAIMER: i'm not a medic, but I am a well controlled T2 diabetic