I have all the skills, but no work. What am I doing wrong? I will not promote

I’m frustrated. Despite having **15+ years of experience** in tech, I still don’t have solid work. I can do **UI/UX, front-end, back-end, DevOps, AI apps, MERN stack**—I’ve built entire apps from scratch. I even tried running my own projects, but due to my poor marketing skills, I could never sell anything at scale. Now, I’ve decided to focus on freelancing. Yet, I struggle to find opportunities. I see people with way less experience landing high-paying gigs, while I keep applying, networking, and getting nowhere. How do I actually get work as a **full-stack engineer / solo developer / CTO**? What am I missing? If you’ve been in this position before, how did you break through? Any advice would be genuinely appreciated.