Hi,
diet was the way for me, I massively reduced my Carbs, stopped eating bread, Rice, Pasta, potato and cereals. Increased protein - Cheese and meats. (Proteins and fats) and all the salad stuff I can eat. Gone low carb but not as far as Ketone diet, I aim for roughly around 30 -50g of carbs daily. I was diagnosed last July with horrendous Hba1c and massively overweight. (See my signature)
Saw the Diabetic nurse yesterday for my 3 monthly check up and she says I am now in remission ( Dr said same a month ago) so don't give up hope, for me it was change what I eat. ( Got all the info and help I needed on this great forum).
I have been fairly rigid but not obsessive and have had the odd bit of bread when I know I am going to be doing something really physical. I rarely eat after 6pm.
Hope that helps.