No matter what job you have, you can always learn more and do better. Just because you’re suddenly “The Chief” doesn’t mean you know everything. Part of being CEO is accumulating a wide variety of experience, feedback, and perspectives so you can come at challenges creatively.
Never assume everyone is on the same page even if your company is only a handful of people. Communicate often! In the absence of knowledge, fear fills the void. Even if a CEO tells their board, that everything is going very badly. That’s good because, “The CEO is on top of it.”