Then keep the company as it is and accept that it will likely not grow. Or, start small with a single assistant and scale up slowly as you gain experience managing subordinates. At some point it could make financial sense to delegate most of the people management responsibilities to a single deputy, your Chief Operating Officer or equivalent, insulating you from whatever related issues you seek to avoid.

You might also consider getting some advice from a management consultant, and perhaps even from a psychotherapist.

Try hiring an assistant to help you manage your employees. To be honest, I don't understand this at all. I am not a business owner.

I think that the expansion of the company implies an increase in the number of employees, and I'm afraid that I won't be able to cope with such a large number of people.