It is also necessary to do more math problems if you want to learn math well. When we choose materials, we must choose materials corresponding to textbooks. We should not blindly choose materials. Only by doing math problems correctly and doing more math problems corresponding to textbooks can our math improve rapidly.
I suggest you make a plan for further study. You can plan the most favorable entrance plan according to your grades, help yourself get into an ideal university, and help yourself make plans early, so that you will have more choices when you go to school.