This is the framework I'd run starting any admin or coordination-heavy role. Not a slow ramp-up. A deliberate push to become hard to replace in the first few weeks.

Join an AI notetaker to every meeting, since nobody likes training you on the same thing twice. When something is ambiguous, ask directly how you'll know if you did a good job, what good actually looks like. In spare moments, work a chatbot for context on the industry and, where you can get it connected, the internal processes too. Spend real time understanding the structure of everything around you. That's what makes humans valuable and what makes you effective at delegating to AI in the first place. Push to get AI connected into every system you touch. Have it read meeting transcripts and start handling the work that's obvious from them. Then keep taking on more.

This works because so much of admin work is coordination and process knowledge, exactly what AI is good at once someone points it in the right direction. The person who does this in their first month looks like a completely different hire than the one who waits to be told what to do.