Caise that is certainly a challenging situation with no tangible suggestions for what they are looking for. My general advice would be to build you ability to see the goals of your CS role in alignment with the factors that senior managers typically care most about. I like an analogy that Mark Bissell used in a webinar he did for ClientSuccess: https://www.clientsuccess.com/resources/webinars/customer-success-webinar-series-help-my-cfo-wont-let-me-grow-customer-success/
Mark noted that there are two ways we often use to track progress - "points on the scoreboard" or "yards advanced on the field". A lot of folks who do what we do tend to talk about "yards" while senior managers tend to think in terms of "points". There can be great value is learning how to talk about what you do in the language of your senior mgt. I would recommend Mark's webinar to you as he has lots of great points about building that communication.
All the best with your proactive plans for career growth. Happy to chat further if I can be of service to you. Cheers!