You already know where it hurts.
You're the one who remembers every follow-up. You know which client needs a nudge, where the files live, and how the invoice actually gets out the door, and that works right up until you're sick, on vacation, or just tired.
I spent 17 years inside large organizations, in HR and operations, and the ones that ran smooth had one thing in common: the way the work got done was written down, owned, and checked. Most growing businesses run off the owner's memory instead. That's normal, and it happens to almost every business that grows faster than the systems around it.
The good news is it's fixable, and a lot of it can come off your plate.