Seeking job advice in recruitment after 15+ years of experience—feeling stuck!

Hey everyone, this is my first time posting on Reddit, and I’m feeling quite frustrated. I’ve spent the last 15 years working in IT, finance, and executive search, and I’ve recently applied to over 500 jobs without any success. I’ve always been a top performer and held management positions, yet I’m struggling to make progress—even with a solid network. I’m located on the East Coast in the US. Any advice would be greatly appreciated! Thanks in advance!