I'm still navigating a career switch to SWE, and I tend to get pretty overwhelmed when looking at code. I already ask a lot of questions, and I want to be more self-sufficient because my full-stack team members are pretty busy. (They are all kind and would all be willing to to take some time out of their day.)
How can I get faster at reading code on my own while balancing a team transition? I'm at the point where I understand the high-level purpose of parts of our codebase but little as to how the moving pieces all fit together.
While I understand that there is likely no magic threshold to determine the point at one needs to ask for codebase navigation guidance, a good rule of thumb would be helpful when possible.