My wife is an undergraduate in mathematics and a graduate in quantitative economics! (Many graduate students majoring in finance and economics in colleges and universities set up summer camps in their junior year, and they will choose students to avoid them through summer camps. I won't list them one by one, but I'll pay attention to them myself. Mathematics is very popular, especially in colleges and universities that attach importance to mathematics and physics. )

If you can't leave, the postgraduate entrance examination is also very cheap!

Therefore, if it is not particularly contradictory, it is still a basic subject. Just lay a good foundation for the future!