Yes, you can. However, it is recommended to give priority to finding a math major. After graduating from other majors, the understanding of high school mathematics will gradually change. Universities have many temptations, are easily distracted and need more time to get started. However, the tutors who dare to hang themselves online are actually great gods. As for the basic skills of family education, it depends on historical evaluation and trial effect. You can ask them to teach you some skills. Most people have their own unique experiences. Maybe this is another chance for you to begin to understand. Come on!