Welcome to the forum
@Roy123
Sorry to hear about your diagnosis, and the uncertainty about your diabetes type.
Hopefully you’ll get some clarity on your type of diabetes very soon. Have you had additional blood checks taken to help throw some light on that?
Diabetes can be a fickle and bizarrely individual adversary - so there are few dietary certainties, as different people can have quite different reactions and glucose responses to the same foods.
One common strategy is to begin where you are, but start to understand what your current menu has going on behind the scenes in glucose terms. You can keep a brutally honest food diary for a week or two. Note down everything you eat and drink, along with a reasonable estimate of the total carbohydrate content in your meals and snacks - it doesn’t have to be gram-perfect, the nearest 5-10g is fine. It might sound like a bit of a faff, and will involve weighing portions, squinting at the fine print on packaging, and possibly looking up things on the internet, but it will give you a really good idea of which foods are the main sources of carbs in your current menu.
Once you can see which meals or snacks are your ‘big hitters’, and where carbs might be unexpectedly lurking, your food diary might also suggest some likely candidates for swaps, portion reductions, or using lower carb alternatives (eg celeriac or swede mash, or cauli ‘rice’).
Some forum members find apps like nutracheck or myfitnesspal helpful.
Let us know the results of your diabetes-type conundrum when they arrive.