Being the new one is uncomfortable, but it’s also the only time everyone expects you to ask questions. Use it.

New status comes with a short grace period where not knowing is assumed rather than judged. Nobody is surprised that you cannot find anything or do not understand the system yet, and that permission is worth more than it feels like while you are standing there feeling awkward. It also expires quietly, around the point where people start assuming you have picked it up.

In the first weeks anywhere, ask more than feels comfortable and write the answers down. A question saved for later costs far more than the same question asked on day three.