During school, mathematics will follow the teacher's progress, one after another. Don't be afraid of hardship and fatigue. If you follow the teacher, math will be fine, and you don't have to choose review materials at school. There are also exams and papers issued by the school and required by the teacher. You don't have much time to do anything else, and there is no need. You can do one on vacation, but don't give up at any time. Many people give up easily, so how many candidates regret it every year? ...
I don't think you will be the one who regrets it. Come on, senior three is easy to get tired, depending on your choice! Senior three is very important!