If you asked me which part of the material is the most important to study, I would have said the material at the end. Because the material at the end is the material before the test, and the test is what matters.
And my answer would have been wrong.
The most important part to study is at the start. Because the start is where the fundamentals are. That’s when the material is the most simple. And because the material at the start is the most simple, it’s the easiest time to put off studying, to overlook the most important parts of the craft.