I suggest that you can find a tutor to make up the function part of the first volume of senior one, especially the quadratic function in junior middle school and its image properties, because there are quite a few quadratic functions in the senior high school entrance examination. With a general understanding of functions, it is much easier to learn exponential functions with images. After the new curriculum reform, the requirements of mathematics in many aspects have been reduced, and it is not difficult to learn. It is better to study with a relaxed attitude. Don't rush for success!