I’d say view the writing you post here as practice hoping for constructive feedback. That’s how I viewed things when I wrote. One day I hope to write and get published. I have several scientific articles published, although none recently due to my current job doesn’t involve original research. But I hope to write fiction and nonfiction as a way to supplement income during retirement.
I've found that the best source of steady income is textbooks. I'm still getting a trickle of royalties from books I wrote thirty years ago.
Unless you're another J. K. Rowling or Stephenie Meyer (I can think of a few more), making a living from fiction is difficult. It's not a matter of talent. Good timing, good publicity, and good movie or TV deals are the keys. Hiring a good agent is essential, but it's a cart before a horse dilemma. You need money to pay an agent, but unless you're a lady of independent means (I love that expression), you have to make that money through book sales. Which means having a good agent. And so on.
I've corresponded with dozens of gifted writers with very sad tales to tell, and all those independent e-publishers of just ten years ago have shut up shop. I keep having to prune my browser bookmarks of dead links. Meanwhile the Kindle Publishing juggernaut rolls on and on.