That’s what being good at something is all about. Being able to find answers and implement solutions.

For now, it’s blindly following. Maybe you pick up some of the context of it.
Then, another problem has a similar looking solution. And you start to understand more.

Rinse and repeat, and suddenly you will know a lot more about the topic and will have to do less general searching.
Nobody suddenly knows how to do complex things. It’s learned and practiced knowledge.