Hi Christoph, welcome to the club no-one wants to join.
There is certainly a lot to take in, but it will get easier, Scout’s honour. Each day, you will be more knowledgeable and experienced than the day before, even if it doesn’t feel like it. There is a lot of experience here, so feel free to take advantage. I have two teenagers with type 1, although they were 6 and 5 when they were diagnosed. Feel free to ask any question you like, and remember, no question is too silly. 🙂