If you are still in Grade One, I suggest you focus on the content of the textbook. You must master the content of the textbook first in any subject, and you have mastered all the knowledge points. You can't say that you can draw inferences about everything, but your basic knowledge will be solid, and you won't easily lose the basic points when you do problems or exams. Of course, if you want to improve your grades while mastering the basic knowledge of textbooks, I personally suggest that you choose top students instead of going to the Olympics, because even if you master the basic knowledge, you may not be able to rise to the level of the Olympics, but it will still be somewhat difficult and difficult. Those who choose "top students" to talk about knowledge points are all in textbook order. They are often tested and error-prone. Usually, exams are prone to mistakes. I will help you find out the key points and difficulties, so that you can master them better, practice the difficulties thoroughly, reduce the error rate and naturally improve your grades. I hope I can help you. Oh, I wish you a higher level and good grades.