How do I keep up with regulations without missing something big?

You read the regulation twice and still aren't sure what it means for your work. You worry a line buried on page forty will cost your team later. This fear makes sense. The rules are many, they change often, and no single mind was built to hold them all. But look at what you're actually doing: carrying this alone in your head, as if memory were the same as safety. It isn't. A rule you half-remember is no better than one you never read. The problem is not your mind. The problem is that you're solving a team problem by yourself. What is in your power is this: build a system with others that checks for mistakes before they matter. Divide the work. Check each other's reading. Ask the people who know. You cannot guarantee perfection. You can guarantee that no single error sits with only one person watching it.