How do I interpret funnel drop-off points linked to cart abandonment?

As a Shopify store owner, I've been obsessively tracking my conversion funnel, and something's not adding up. I'm seeing a massive drop-off right at the cart stage - it's like customers are window shopping but getting cold feet at the final moment. Every time I look at my analytics, I see promising traffic and product views, but when it comes to actual checkout completion, the numbers plummet. I'm spending thousands on Meta ads, driving quality traffic to my site, but these cart abandonment rates are killing my ROAS. It feels like I'm leaking potential revenue with every bounce. I know the problem isn't necessarily my products - they're getting viewed, even added to cart. But something in that critical conversion moment is causing potential customers to hesitate. Is it pricing? Shipping costs? Lack of urgency? The uncertainty is driving me crazy. I need a systematic way to understand these drop-off points, not just see a generic percentage, but truly comprehend what psychological or technical barriers are preventing customers from completing their purchase. This isn't just about numbers - it's about understanding the hidden friction points in my store's buying experience.