Fractions and functionals are just basic courses, not deep. . . Personally, I think it is necessary to know clearly what I am studying (generally speaking, some points belong to pure mathematics, and I don't know what you mean by pure mathematics). If you are interested in the following advanced courses and want to learn them, you need to have a deep understanding of several theories. If you just apply what you have learned, it will be helpful to practice the related things of formula derivation first. . . Your tutor said that the self-study of several points is slow, probably because it is too basic, and you need to understand the underlying ideas step by step to achieve mastery (because compared with the difficulty of the following courses, the scores are worse by several grades). Personally, I suggest self-study first. It is difficult for such a big person to break through after being taught by the teacher. If you don't understand, just ask the teacher. If you have more time, of course, it is better to flirt with the class. . .

Good financial direction, good luck ~ ~