Depends on what school you entered. Generally speaking, the requirements for mathematics in financial colleges are quite high. You can't improve math if you work hard, but if you work hard, you will inevitably have less time in other subjects. This is your weakness compared with the fresh graduates who reviewed in school. As for what you said about taking the exam in one year, this can be considered, because studying mathematics for one year will definitely make up for what you haven't learned, and then you can compete with them like freshmen.