Welcome to the forum
@Jillyfaw
If you would like a good overview of T2 diabetes, to add to the knowledge you’ve already picked up, members here frequently recommend
Maggie Davey’s Letter and Gretchen Becker’s book
T2 Diabetes, the first year, which you can work through gradually and will give you a solid starting point.
Diabetes UK have also produced this ‘Enjoy Food’ guide which you may find helpful to browse through for ideas
Though it’s important to balance the carb content of your meal (and the type of carbs) with your metabolism’s ability to cope. And not all recommendations - eg to eat breakfast cereal every day - would work for all members here. So it’s a question of finding out what works for you as an individual.
Many members here find it really helpful to be able to observe what happens to their BG levels directly with a blood glucose meter as part of this experimentation. So they can base their decisions on their personal response, rather than the general reputation of what happens for other people.
You can check before eating, then again 2hrs later, and look for a rise of 2-3mmol/L or less. if you get a bigger rise you can reduce the carb portion, or switch to a type that suits your body better.
If you’d like to try this approach the most affordable meters members here have found are the
SD Gluco Navii or the
Spirit Tee2 - which both have test strips at around £8 for 50.
Good luck and keep asking questions!