The shape of the problem
The work is good. Everything else runs through you.
In an owner-managed business, the person who runs it is also the finance director, the head of procurement, the compliance officer, the IT department and the sales team — usually after hours, usually alone. The product or the service is sound; that is why the business exists. What has grown around it is everything a larger business would have someone for.
A larger business has a finance director to test the pricing every year, a procurement head to read the supplier contracts together, someone whose only job is the compliance calendar. You have been doing all of that yourself, on top of the work the business exists for — and doing it well enough that the business has grown. The things that slip are the things that need a whole person: the price that has not been re-tested since the last increase, the biggest customer whose share of revenue is a feeling rather than a figure, the obligation that turns up a week early, the records that live in four places because there was never time to build the fifth.
None of that is a failing. It is what a business looks like when it has outgrown one person's hours and not yet grown into a second layer. That in-between is exactly where we work.