I have it too and the diet my nutritionist put me on was 15g of carbs for breakfast. Then lunch and dinner between 50-60g. 2-3
snacks per day. No juices or milk. Lots and lots of water. Proteins are great (I'm vegetarian so this was a little harder to stay full) and no more sugary delicious food haha. Plus 20-30 minutes of exercise per day. Then check ur sugar levels when you wake up, then 1 hr after every meal (not snacks). My glucose levels stay perfect as long as I don't cheat.