The answer is...
It takes work.
Yes, I know. You do art because you love it. Because you have to. Because it's part of who you are. I get that.
However, just because you call yourself an artist, doesn't mean that you are one. I could call myself a doctor, but that doesn't make me one.
It takes hard work and dedication to become a real artist. Not only do you have to learn all the techniques for your chosen art form, but you also have to learn how to run a business. Because if you want to do more than give all your art away as gifts, then you are going to have to get your work out into the world. That will only happen through learning the business side of art.
And, it's really not that hard. There are basic principles that govern any type of business, and the art business is no exception. And, the best place to start is with a business plan.
Yes, I know, I am hearing the groans already. Trust me, it will really help. All you need is a one page document that spells out what you are going to create, who you are going to be selling it to, where you are going to sell it, how you are going to sell it, and why are you doing this. Very simple.
This is just to keep you focused. Use it as a road map to get you to your goal. And keep doing art!