I, too, was recently diagnosed with Type 2 Diabetes. Had no idea until my lab work came back from a routine physical. My A1C was about 9.7. And, like you, I was very anxious. So much so, I was afraid to eat and lost 8 pounds that first week. I was already eating fairly well, at my ideal weight, and was exercising at least five days a week, so it came as quite a surprise. I was facing taking Ozempic and Metformin since weight loss and exercise weren't really options for me. But with the help of a CGM, I was able to determine which foods affected my glucose level the most and when exercise would help the most. I'm only on metformin now and was able to get my A1C down to 6.5 in the first three months after diagnosis. And I really don't think I'm "missing out of life" (though I miss those sushi rolls!).
So, please, don't despair. There's so much support out there for you. And there's plenty you do to take charge and manage your diabetes. I fully understand why you're anxious right now. But I have every confidence that, in a few months, you'll have it all under control and you'll live a long healthy life.