Welcome Maxie
Not far ahead of you in this journey of discovery. I spent a long time using this forum as a learning tool to equip me in my plan to take control of diabetes. On the whole it is working. My BS are a lot lower from a low carb diet. You need to work out how low suits you. The lower the better for me so I have banished shop bought baked products including bread, pasta, rice, other grains, milk, potatoes .... from my diet and replaced with LC home made bread & cakes, more green veg, lots of celeriac for "chips" and mash, soya milk, more meat, cheese. As a result I now think differently. I do sometimes hit a brick wall - i.e. can't think of an alterntive but keep trying.
My advice when you see the nurse would be to get a glucose monitor and test strips (depends on your PCT whether this will be sanctioned) as you will need to test your blood sugars to know what different foods are doing to you. I have learnt that diabetes is very individual and just because something works for me it might not for you. Lots of people here will advocate that you eat to the meter. Test before you eat, then at meal + 1 hour then + 2 hour. Trends will appear.
Also useful if you can get a Collins Gem calorie counter (less than a fiver) which tells you the carb count of most foods. And beware portion size! 100g is deceptive so weigh your portions until you adapt.
Be kind to yourself and ask for help. My OH is supportive because he knows this taking control matters and will try the alternatives with me. If he doesn't like he isn't forced to LC with me but does like the cakes, the bread he says is definately getting better with every attempt, can't tell the difference between a soya milk cauli cheese and a regular one. Get educationg those around you as well.
I do have dark days when "woe is me" but on the whole the fact that the pains I had have all but gone, the head fog is a memory and I'm no longer depressed or suicidal makes the changes worthwhile.
If you think of more stuff to ask the nurse after your first visit then just book another appointment. My truth is that this forum is much more use than my local db team. There are no silly or stupid questions around here so just shout and someone is likely to kmnow. M