How can I use commitment and consistency principles?

As a Shopify store owner, I've been struggling to understand why some customers who seem interested just... disappear. I've read about psychological principles like commitment and consistency, but translating that into a practical e-commerce strategy feels overwhelming. My conversion rates are decent, but I know there's untapped potential. Every abandoned cart feels like money walking out the door. I want to create an experience where customers feel a sense of investment and are more likely to complete their purchase. But how do I do this without feeling manipulative? I've tried generic pop-ups and discount codes, but they feel generic and don't really speak to individual customer behavior. I need a sophisticated approach that respects my customers' decision-making process while gently guiding them towards completing their purchase. My goal isn't just to trick people into buying, but to create a smooth, psychologically intelligent shopping experience that makes customers feel understood and valued.