Pcos and pre diabetes diet

Deviney

I regret this but I waited 3 years to find out whats wrong with me and as of last week I found out. I have PCOS and im at risk of type 2 diabetes, only being 4 points away. I go see the doctor the 4th to get prescribed medication but I want to go ahead and start eating right. I looked on google for a diet list and it only said the same 3 things. Not much help. So:

What all can I not have and what cant I have?

With a better diet and medication hopefully my 8th year of trying comes to an end.