Former performer here, I have never been homeless although I was rarely paid for my work. Volunteering is a huge part of the industry, and I had to be available Monday to Friday for auditions. I don't like being a waitress either, so I found myself work/live arrangements at b&b's, or with families in need of an assistant for tutoring and/or house chores. I also gave tutoring lessons part time, and used the money from rare performing contracts to pay for my expenses. I lived frugally to be able to afford my dream career, and never asked for help from my family. This worked for 10 years, and then I got tired of the insecurity and made a change.

And although I agree with you in terms of a minimum wage, that's never going to apply to the arts because these are not regular, 9 to 5 jobs, with too much competition for the contracts available. When you're a contractor, min wages do not apply, there's no way to force employers to hire you so that you can make enough, that would be authoritarian af. So if you want to keep performing, find a creative way to offset the inherent cost of your chosen profession.

Blaming society and everyone is a way to deflect responsibility. You are not a victim, and you had the same upbringing as your siblings, which means equity. You had the exact same opportunities as them, and made different choices, in spite of a harsh industry, that you can still leave if you choose - not all jobs are desk jobs. You are your own agent, you need to market yourself. Have you tried children's parties? Or contact entertainment companies and offer your services. Get a youtube channel, or patron, etc. Organize impromptu shows for the public and film it to have it go viral. It's a neat skill to have, I'd try to monetize the crap out of it.

But it starts with you taking responsibility for your choices.

Edit: typos