I think if you want to do it with confidence, I believe you can do it. I love doing math problems since I was a child, especially some unusual problems. It feels good to make them. Maybe I like challenges personally. In addition, I think doing math problems makes me think clearly and comprehensively, which is very beneficial to other subjects, especially physics and chemistry students. It may be because when doing a problem, it is often necessary to filter the information given in the problem and make good use of all the effective information as much as possible to work out the answer. Actually, intelligence is a very abstract concept. To say that intelligence is innate, but some abilities can be cultivated through hard work. A flexible mind is not necessarily smart ~