Question 1207816
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This question is not the kind of question for which this forum is appropriate; and it is a question that can't really be answered.<br>
However, I will supply a response with my opinion.<br>
I would say it is NOT best to concentrate on one topic at a time.<br>
Suppose you have four topics A, B, C, and D that you want to study.<br>
If you study A one day, B the next, C the next, and D last, then by the time you finish studying D you might have forgotten most of A.<br>
For most students, I believe, the studying will be more successful if you study a little bit of all four subjects in each of the four study sessions.  The learning will be slower at first, because you are studying several topics at once; but in the end the studying will be more successful because you are reviewing all the topics each time.<br>
Just my opinion....<br>