Just diagnosed. I need guidance.

I just got the call that I have GD. This is my second pregnancy and it has been awful the entire way through. I am 28w and I just want to scream and cry. I guess my question is, what happens now? I have to continue to meet with my nutritionist and have a scan in two weeks of the baby. What are you all eating? How are you managing? I’m terrified of pricking myself to get numbers. I’m sick over it. I don’t like blood or needles, it literally sent me into a full panic attack doing the 3 hour. I’m just unfamiliar and lost on where to go from here. I don’t eat the worst diet, but my fasting number was 99 and my first draw was high at 200. I could definitely improve eating. Ty