Figure out why your existing clients pay you. This will help you figure out what you do well that other people value. If someone will pay you to do work, they believe the work they’re paying you to do is valuable and that you’ll do it well.

Figuring out what you do well and is valuable to others will be the key to your success as a freelancer. More and more skills are becoming commoditized. Commodity skills are moving higher up the value chain.

Doing an easily repeated task well will not differentiate you. You want to differentiate yourself in a market that gets more crowded every day.

It’s hard to look at yourself and figure out what differentiates you. It’s easier to learn what makes you stand out from the crowd, by listening to what are other people are telling you.

I’m not suggesting you should let other peoples’ perspectives define you. I’m suggesting you listen to what other people tell you they value in your work.

The easiest way to hear what they’re trying to to tell you is to see what they will pay you to do. You can then grow your business by finding other clients who value your work.

You need to figure out what work that is first, before trying to grow your freelancing business. A key question to ask is whether you can find and/or train others to do what clients pay you to do, as well as you can do it.

My experience consulting for 20+ years has been that most people starting consulting businesses begin by saying they don't want to be a "body shop". This means they want to start a business with differentiated value.

The story changes when clients start offering to pay for bodies that do commoditized work. Keep an eye on this tendency as take on more work to grow the business.

Also, I'd suggest you read Rework, by Jason Fried. The book provides a compelling counter-perspective to the goals it sounds like you have for your business. If nothing else, it will help you reflect on why you want to grow and hire people.

I'd be happy to continue this discussion on a call. Best of luck to you either way!