Oh dear that's poor support from your clinic
Have you been given a blood glucose meter and testing strips to test your levels at home? If not, you should go to the doc and ask for one. It's really useful for people with type 2 to help find out which foods have an effect on their BG levels (by testing yourself before and two hours after a meal, to see how much your levels rise by).
In general, all carbohydrates that you eat will end up as glucose in the bloodstream, and need insulin to be used (which as a person with diabetes, you either aren't producing enough of, or you are resistant to it). So it is really useful in terms of blood glucose control if you can reduce ALL carbs in your diet. Carbs include the obvious sugary ones, ie. sugar, biscuits, cakes, etc., and starchy carbs such as pasta, bread, rice, potatoes. Many fruits are also high in carbs, especially bananas, mangoes, grapes, pineapple. Lower carb fruits include strawberries and raspberries, but it's better to eat more vegetables and salads to get your "5-a-day" instead of fruits. Definitely to be avoided are sugary drinks, including the obvious sweetened fizzy drinks like coke, but also you should avoid smoothies and fruit juices, which although they have no ADDED sugar, have just as much carb content as an equivalent amount of coke!
There is lots more advice in the weight loss section (whether or not you have weight to lose).
🙂