@Shellbellx welcome.
I'm 27 and was diagnosed with type 1 almost 4 months ago back in September. So far I'm very well-controlled and dropped my a1c from 13.2 at diagnosis down to 6.0 earlier this month. Like you, I also have a very stressful job (Financial Advisor).
It's definitely a big shock and there's a lot to learn. I'm glad to hear that you're working through your emotions as that's where many people struggle the most. I'm very lucky to have avoided those emotions (at least so far). For me, it was as if I woke up on the day of my diagnosis and this was the new "normal." The quicker you can get to that point, the better.
The most valuable thing I've done to this point was start reading and learning. I've learned how other people manage this disease, what works or doesn't, how this disease affects our bodies, and how to continue on the path to enjoying a long and healthy life.
Remember this: there are people who have lived with diabetes more than 75 years and were diagnosed in a time when treatment options were very primitive and almost nonexistent. That has changed significantly in the last 50, 25, and even last 10 years. Long story short, I'd be a fool to say that it's "easy" to manage this disease, but it's certainly much easier than it was even 25 years ago.
Take your time, be patient, and start learning what your body needs to manage this condition. Don't be afraid to ask for help and don't be afraid to question what you hear. Remember, it needs to make sense to YOU and YOU decide what it best for your body.