New Diagnosis and Completely Lost

I just got diagnosed with Type 2 a few days ago and I feel completely overwhelmed. I don't understand any of the lingo; I wasn't given any sort of numbers from my doctor. I don't see a nutritionist for another 3 weeks yet and I feel like I can't eat anything. I've looked around online and through this sub but I just feel completely lost.

What can I do until I see my nutritionist? I don't know what to eat. It seems like there's so much information out there that contradicts other information. Where can I go to find true and accurate information?