I'm sorry to say many of those foods you mention are not too good as choices for Type 2 diabetics.
cereal, bread, potatoes, pasta, rice, pizza are all high carb foods, so you might want to look for some alternatives or reduce your portions of them to a minimum.
Full fat Greek yoghurt with berries or eggs for breakfast.
Salad with meat, cheese and maybe coleslaw for lunch
You can use alternatives for standard pasta, like black bean or edamame bean pasta or courgette or other veg to go with the pasta sauce. People often use cauliflower rice with curry or in stir fries.
You can use butternut squash, celeriac, swede instead of potatoes as they are much lower carb.
How much you need to do will depend on what your blood glucose is when you start testing. More than 2-3mmol/l increase form before to 2 hours after after your meal would indicate too carb heavy. You would be aiming at no more than 8.5mmol/l post meal.