What's the best way to segment my cart abandonment data?

As a Shopify store owner, cart abandonment has been my silent growth killer. Every month, I'm watching potential revenue slip through the cracks - thousands of dollars just vanishing. I've got decent traffic, solid product pages, but something breaks down right before checkout. My analytics show around 70% of shoppers add items to cart, but only 20% complete the purchase. That's a massive gap! I've tried generic remarketing emails, but they feel impersonal and rarely convert. I need a smarter approach that helps me understand WHY people are leaving. Is it shipping costs? Unexpected fees? Decision paralysis? Or are different customer segments abandoning for completely different reasons? I'm tired of shooting in the dark. I want granular insights that help me diagnose the specific friction points in my store's buying journey. More than just seeing a percentage, I want to know the story behind each abandoned cart - the context, the customer type, the potential missed opportunity. This isn't just about recovering lost sales; it's about redesigning my entire purchase experience to be more intuitive and customer-centric.