The most important thing in mathematics is finishing after learning. It is recommended to find an experienced tutor, such as a teacher in a small class in Southeast Mathematics and Science, who has a good reputation. You can ask the teacher to help you sort out the main points of knowledge, sort out the knowledge structure, consolidate the basic knowledge, and expand the counseling accordingly. However, learning should also pay attention to continuity and solidity. Sustainability is manifested in gradual and stable improvement. The firmness lies in the fact that the knowledge learned can be used to solve problems in practice. Believe in yourself, these achievements will be greatly improved.