If I were buying furniture, ready to drop a few grand on a dining room table, there’s no way I’d get it from a guy who has made “a few pieces”.
Before you even consider the basics of running a business, what’s your level of understanding the basics of woodworking? Wood movement? Joinery? Finishing? How do you design your furniture?
Also, strictly from a business standpoint, what hourly rate do you plan to charge? In my opinion, anything under $60/hr is not good business practice. Some will say that number is $100/hr. Either way, you have to value yourself.
On your next project, make an estimate of how much you would charge for the piece. Then keep an honest running total on how long the project takes. For everything: design, emails/calls to clients, material pickup, milling, joinery, sanding, finishing, delivery. Then figure out what your hourly rate is.
I don’t like being so negative but I also don’t want to encourage you to make a life changing decision that goes bad. Somebody said in one of the many of these threads that if you have to ask you’re not ready.
You’re looking for information, so here’s a site I found helpful.
http://www.solowoodworker.com