Hi caroline 83 and welcome to the forums.
It can be extremely confusing at first. There's a lot of contradictory stuff on the internet and it can be very hard to know which bits to trust. It would help people to reply to you if you could give some additional information - for example - do you know what your HbA1c level was? (That's the test usually used to diagnose) What's your current diet like? Are you interested in learning about low-carb eating? Do you want to lose weight, or reduce your blood glucose, or both? Are you on any other medication (apart from metformin) or do you have any other relevant health conditions?
I'd encourage you to read around on the forum and don't be afraid to ask questions. We have all been where you are now. The really good news is that there is something you can do about the condition.