MazaDj I'm sorry to hear of your diagnosis. The early days are tough with so many unknowns and so many new things to learn.
Random thoughts and questions popped up for me and I found it helpful to jot down questions in a note on my phone. When I went to meet my surgeon I went through the questions. Having never had surgery before one of my questions was: are you the one who will actually operate on me? to which he gently laughed and said yes. No question is irrelevant, if it pops up in your head then put it to the next person you see and at the least they will advise you who can provide the answer.
As pjaz1327 mentioned, try to focus on the current information. There's a lot of scary stuff out on the internet that is completely irrelevant to your situation that can increase confusion. One step at a time.
Let your GP and specialists know about how you're feeling. They will have ways to support you.
And you can reach out to the BCNA Helpline for a chat as sometimes that can be helpful in getting a few things out of our heads and reducing the stress.