Bro, that's bullshit. Let me tell you why.
You are obviously an amazing cook. The shit you were doing down there was exactly what I've always thought should be done with BBQ. BBQ, by itself, is somewhat off putting to many people. Most places serve shitty sides because they can't cook. You're kinda the opposite of that. Your talent is masive, the food you put out is amazing.
What you do is completely family friendly and marketable. You need an organization to scale, memorialize, and monetize your work. You are the back of the house, the talent. Don't quit. Save every scrap from Instagram, Daniel Vaughan, press clippings, etc. I know you feel like shit and want to quit. But is takes fifteen years to become an "overnight success".
You need to know what the next step is. And that's scaling up. Prepare to market yourself and your product. You need capital to purchase a location with guaranteed traffic. What capital will want is a unique product to guarantee success and grow the business. You can give them that, and you'll get ownership.
Being undercapitalized is a bitch, but even worse would be walking away from what you've learned. Take what you've done and leverage it, scale it up. That is the path to success.