If you're learning a new concept in class on that day, do the homework that's set out immediately once you arrive at home. That way, you're consolidating the information in your long-term memory Also, what I'm planning to do next week is a past paper in exam conditions. From there, the mistakes you've made will indicate the areas you need to revise, i.e. go back to the textbook and relearn the topics you're not comfortable with. Let's say you're strong with trig and functions but not so strong in geometry. If that's the case, work on the latter. No point enhancing your strengths when your weaknesses are not amended at all. It's like a tree - if you don't have all roots established (expertise in all topics), then your branch will be unstable (holes in your knowledge) and therefore the tree will fall down (not do well in the exam).
So yeah, do past papers to highlight what needs work and it helps improve exam technique as well.