First, combining my personal experience with the experiences of friends around me, with the growth of my age, I feel more and more that being smart is not necessarily a good thing for everyone. There are too many people around who think they are smart, but don't study hard and play bad cards. On the contrary, those who are not recognized as smart people too early, instead, work hard and finally achieve their own success and make their lives flourish. It is more obvious when learning mathematics. A person with high IQ may have a high ability to accept knowledge, but he understands it in class, and does not review or brush questions after class. There is no difference between high IQ and low IQ.
Secondly, I mentioned in the first paragraph that cleverness is not a sufficient condition for learning mathematics well. In my opinion, hard work and persistence are sufficient conditions for learning mathematics well. Anyone who has experienced the college entrance examination knows that learning is a protracted war and learning mathematics is a protracted war. Once a university chooses mathematics, it may be a lifelong companion. So you must have enough perseverance.
Thirdly, it is undeniable that mathematics is difficult, it is difficult to learn mathematics, and it is even more difficult to persist in learning mathematics. Therefore, we must be careful when choosing a major, especially some girls who study liberal arts. Before the reform of senior high school entrance examination, mathematics in liberal arts province was simpler than that in science. If you have no interest, perseverance and hardship, don't study mathematics.
In a word, people who study mathematics don't need to be particularly clever, but they need something more rare than cleverness. Finally, I wish everyone can get the grades they want and go to their favorite schools and majors.