Hi Jane, I'm sorry to hear about the lack of support you've got so far with your diabetes diagnosis.
I was diagnosed in October and my HbA1c was 80 and I was put on 2 x 500mg of metformin a day, so I've no idea why some people get put straight onto medication and some don't.
I bought myself a blood glucose monitor (a gluco navii) and check in the morning and if I'm eating a meal I've not had before to see what it does to my blood glucose levels to try and steer myself away from food that isn't so good for me. I can recommend getting one if you can afford it.
Have you been offered to go on a diabetes course by your nurse or been told that a referral has been made for eye screening or other things?
I can recommend as a starting point, to sign up for the Learning Zone (at the top of the page) so you can run through some of the courses and learn a bit more about it.
As for food, it's obvious stuff like sweets and cakes that put up your blood glucose, but also less obvious stuff like bread, potatoes, parsnips, rice etc, that are mostly carbohydrates. You don't need to cut them out of your diet completely, but be mindful that your plate needs to be less carby than before. Some people (including me) follow a low carb diet, of less than 130g of carbs a day, and some don't. You need to find out what works for you, and the BG meter is an excellent tool to find out what works if you can get one. There's a
book section on the forum if you want to get a book on diet or about diabetes generally. I can recommend the Professor Roy Taylor books on diabetes if you can buy a copy.
I know it's all a bit new and confusing at first (at least it was for me), so ask questions and look at the forums. It's a friendly place and we're happy to answer.
Sarah