Hello, I suggest you consider taking classes for three reasons:

1, sign up for class, through the teacher's guidance, you can know the main points of the exam more quickly and comprehensively, and cross the river with the surprise-rich teacher instead of alone to avoid unnecessary time cost;

2. There will be exchanges and encouragement between students in class study, and they can discuss knowledge points and experience in preparing for exams, and also help each other solve psychological problems in life and preparing for exams;

There will be relevant materials in class. The materials are all classics refined by teachers, which can stand the test of practice and can be used directly. There is no need to dig deep into all kinds of data collection, which is more targeted.