According to your question, you can also see that you are mentally ill or can't learn.

I'll tell you how. Learning in high school depends entirely on consciousness. In addition to memorizing formulas, theorems and concepts, we should do more examples to deepen our understanding, and even re-derive theorems ourselves, which is equivalent to a quadratic function. It is much more reliable to find the vertex coordinates by matching yourself than memorizing that the symmetry axis is (-b/2a).

The teacher teaches the textbook content, we learn the textbook content, and the exam tests the textbook content. As long as we understand what the teacher teaches clearly, we will certainly do well in the exam.