How do I optimize Black Friday ad targeting?

As an e-commerce business preparing for Black Friday, I'm struggling to create precise ad targeting strategies that maximize my return on ad spend. I want to move beyond broad audience targeting and develop a more sophisticated approach that identifies high-intent customers, reduces wasted ad budget, and increases conversion rates during this critical shopping period. My goal is to understand how to leverage behavioral data, create custom audiences, and implement dynamic targeting techniques that will give me a competitive edge during the holiday shopping season.