The paper she gave me says A1c 6.0 and Blood Sugars mg/dL 120
I think I should mention that I take 700 mg of seroquel a day, which might be a problem I have to talk to my psychiatrist about it, and maybe get on a new med.
Considering your current numbers, I believe you'd go a long way with having your own meter and changing your diet. You're not on the seroquel for the heck of it, and it could well be that with diet alone, you can get your numbers back down into the normal range. You'll want to check with a meter of your own to see whether that's working, as that will give you answers a lot quicker than a HbA1c a few months or even half a year from now would.
So you wouldn't have to change anything just yet. I know how hard it is to find meds that work, so if this one is doing it for you, try the diet change first, check progress with your own meter, and then decide whether you need a switch. You don't have to decide these things overnight.
That said, you mentioned a few things relating to diet. First off, depending on what meals look like in your home, there doesn't have to be all that much change. My husband and I virtually have the same meal, except he has carbs to go with it, and I don't. I have considerably more meat and fish than he does, to compensate for the lack of potatoes and the like. Above ground veggies and leafy greens can be served just as you like. (Pulses might be problematic, your meter'd tell you). Every now and again my husband'll have a pizza or lasagne, but that's just a matter of chuck-it-in-the-oven while I make myself two nice chunks of salmon, for instance. Keep it simple and stress-free.
They don't have to join you in your diet, you just don't join in in theirs any more.
As for how often to eat, I got the same advice you did. Three meals, three snacks, like clockwork. Got me nowhere, and my pancreas was still overtaxed each and every day, as it was forced to deal with everything I put in me. Better to give the poor thing a rest. Key here is to eat three meals a day
or less. Preferably no snacking, though some might find it hard. I'm on medication right now that requires me to have breakfast in the morning for the time being, but when I'm back off of it, I'll be breaking my fast between 11 and 1, so lunch would be my first meal, with a load of eggs (with cheese and ham or something) or more salmon. Before it turned out I didn't handle salads well in regard to other conditions I have, those were a staple too, lots and lots of leafy greens with olives, mayo, capers and tuna, or warmed goat's cheese with apple cider vinegar etc. Really good stuff. (If I'd told me 10 year old self I'd ever miss salads, she would've thought I'd lost my mind.) Then i'd have meat and/or fish in the evening. You could add cauliflower rice with cheese and bacon for instance, to bulk up a meal and replace potatoes, rice or pasta. Curuma, garlic and the like tossed in for flavour, really nice. I'm basically down to 2 meals a day, under normal circumstances, and I make sure those meals are nutrient dense, besides low carb. That way they don't raise my blood sugars, but my vitamins and minerals stay up to par, and I have enough fuel in me not to go hungry. That's a bit of a thing: Diets do
not automatically mean you have to go hungry. Just make sure you eat the right things, and it shouldn't be a problem.
https://www.diabetes.co.uk/forum/blog-entry/the-nutritional-thingy.2330/ might help some.
Good luck!
Jo