I think you are getting ahead of yourself? You seem quite knowledgeable about whether there are jobs or not when you haven't been out in the job market yet? Even if you get a minimum wage job to make ends meet, one doesn't "become" or go to work at the top of one's field right away; there's usually a lot of years of working in/around the field, getting contacts, promotions, learning all aspects of it before one gets to a level where one is comfortable.

I would see if I could volunteer as a docent in a museum/theater/wherever, relative to your fine art and/or get a job in a gift shop or store that relates to it; work in the accounting/ticket office or membership/promotion departments. No one does a fine art in a vacuum, just that and no other part of life! You have to keep your life as balanced as possible to succeed in your art; work on other aspects as you work on improving your skill, craft, and genius. Get the other things in place so you can then shift to more time for your work. It doesn't happen magically, right out of the box.