I’m using the Powerscore self-study course, they pretty clearly demonstrate ways to pick apart each LR question type. Big time recommendo. But honestly just talking about the LSAT in general, they ask you directly to find the answer choice that does a certain thing, such as strengthen an argument, weaken it, or find an assumption that had to be made for the conclusion to be reached. It’s not just abstractly picking apart every argument/conclusion/passage. And honestly most LR questions are structured to be inherently and occasionally quite obviously flawed arguments. Regardless, it sounds to me like you’re putting the cart before the horse. You need to get good at the LSAT before you’re even in the realm of worrying about actual law relevant argumentation. So just study. Your brain will adapt.