Yes. Consider purchasing coaching. I cannot give you medical nutrition therapy on a board post.
In general, a high carbohydrate diet can be achieved for both pre-diabetics and diabetics with careful manipulation of timing and fat intake. Karl Schudt was the perfect example of this. Pre-diabetic at 265 and at 215-225 he was eating 400-500 g carbohydrates per day with sub 100 fasting blood glucose levels.