First, there is a clear understanding between disciplines. Since it is a physics competition, there must be some competitive thinking, which can be imitated in parallel.

Second, do more research on mathematical principles, not just doing problems, and try to find mathematical thinking and methods from problems;

Third, the Olympic math problem is actually a flexible use of existing knowledge, which often shows a clever way to solve problems.

These are just some ideas. You can talk to me later if you have any questions.

Sometimes you can try to learn the textbooks for senior students, which I believe will help.