Hello 

When you'll start your higher secondary studies i.e. 11-12 Std, simultaneously your preparation for national level exams will be started by your coaching institute. Your need to focus on both the studies that time.. i.e. your school work studies + your coachings. Hope your are getting my point.

Currently you focus on your 10th and give your Bestttt .! 

All the Bestt ! 

For any further queries/information .. you can ask in the comment section below.!