Gestational diabetes

I just got a call from KKH. I am having GD. This is my 4th pregnancy and I never had GD before.Im at my 26 week now. I'm lost and I don't know what to eat right now. I'll be meeting the nurse and dietician only next week. The nurse over the phone told me food that I should avoid for now, but my mind is totally blank. I feel so depressed with the news . #advicepls