Calories don't exactly matter much, far as T2 goes. Carbs do, as they turn to glucose once ingested, so that's straight sugars, but starches too, and that'll impact your bloodsugars directly. Most vegetables have some carb content though, though it varies wildly how much. I rather enjoy cauliflower rice as it is versatile, broccoli too, leafy greens... Didn't anyone tell you meat, fish and poultry are 0 carb and you can eat those to your heart's content? Eggs are pretty good too, as is proper butter, hard cheeses, full fat greek yoghurt, cream, avocado... In moderation, nuts, extra dark chocolate (85% and up), berries, tomatoes, starfruit are fine. But it all depends on how much your body can handle, really... I started out with, I think, something like 85 grams of carbs a day, two years ago... Was sortof okay with that but felt I could do better. Halved it, felt better, halved it again last spring or something... Am now at 20 grams of carbs or less and ketosis is, for me, the right choice. (Ketogenic diet, burning fat instead of carbs for fuel) But you really do need a bloodglucose meter to tell you what your body can and can't handle, carb-wise. (test before a meal and 2 hours after. if you go up more than 2.0 mmol/l, it was carbier than you could process). It's a lot to take in all at once though, and you don't have to learn it all in a day. Take your time, take notes... It'll help make this less stressful. Took me 3 months to figure my first regime out, everything I tried after that went quicker, once I knew what I was doing.
Hope this helps!
Jo