Hi Debbie and welcome!
It will take a bit of time to digest all you've been told, but you'll get there and there isn't a rush.
It was great that your Doc. suggested trying dietary adjustments before introducing medication - some just reach for a prescription as an easy 'cure'.
There is a growing body of evidence that suggest the bog standard NHS/NICE 'Eat Well' advice isn't perhaps the best as it's very high in carbohydrates and these all become glucose when digested. Many here have adopted a low carb diet and have found it does reduce blood glucose.
Bread is in most of its guises a high carb food, though there are one or two types that are very low carb. Nearly all pasta based foods are also high carb. Veg is generally low carb particularly green veg. Fruit varies, but on the whole is pretty high, the lowest are rasps and strawberries. Potatoes are high carb though new potatoes are much lower than old ones. Chips - well you can forget them. Fish is good with very low carb and other benefits too.
You might like to have a look at another site dedicated to diabetes where you'll find loads of dietary advice. I'll not post a direct link as it might be deleted but (fingers crossed this works) try -
diabetes(dot co dot)uk. Just replace the 'dots' with with a full stop.
You may also find this link to be useful -
https://www.diabetes.org.uk/Documen...00911.pdf?_ga=1.24312698.179575632.1472079931
Dave