Ask the dumb question on day one. It costs way less than the dumb mistake on day thirty.

Early ignorance is expected and cheap, while the same gap discovered a month later is awkward and expensive, because by then you have been acting on a guess. Nobody is surprised that a new person does not know things, which makes the first week the lowest-cost moment to ask anything. Waiting does not make you look better, it converts a question into a mistake. That window closes quietly.

Write down every question you are unsure about this week and ask them all. Ask in a batch if that feels easier. Keep asking past the point where you feel you should already know.