One of the most common mistakes that entrepreneurs do which stunts the growth of their business is they try to be superheroes and do everything in their business. As your business grows, your needs also change and you need to adapt accordingly.
It is unwise to spend most of your day performing the time-consuming ancillary functions, instead of the value-adding core activities that drive revenue and growth. These crucial processes may involve the strategic and creative aspects of your work.
As for the mundane tasks such as responding to client inquiries and requests, data entry work, administrative duties, and other similar activities, it is recommended to hire someone else to do it for you.