Expanding Advice NEEDED!!!

I am not a carpet cleaner, but my best friend has owned her own business
for five years. She has done really well for herself. I don't know all about
her finances or anything but I do know she does well for herself, she has a
good customer base, she has only one van, she has great marketing skills,
but she only has one employee...HERSELF.

My main question would be what is someones advice to get her out of her
rut of just being able to do all the work herself with the customers that she
has and being able to get over the lump of being able to hire on another
person that can free her up to try and get out there and get more business.

I am not sure on how to ask for the advice I am needing, but if anyone here
is familure with this "cross over" situation PLEASE advise.