OK, I see you are from TN, Let me tell you in detail, The answer actually depends on wether you are preparing for JEE/NEET/NDA/BITSAT or other entrance exams, let me cover both side by side. Even though I am not an "eligible Coder" to answer this, i may know a thing or two about School life and Coding combined.

1) CBSE/ICSE/State and preparing for JEE or any entrance : I highly reccomend you to focus on JEE, They are very much important and often require your best efforts that is, if you want to get into NITs or IITs and spend very little time in CP, you can practise for 1 to 2 hr on weekends (this is what I did and I got 97 percentile in JEE and that was not enough ) and i am currently diving deep into CP. If you can get into a good college then you can quickly grow in CP, like very fast, many of my friends who are of my class are apprentice ranks already, and college started like 2 months ago

2) CBSE/ICSE/State Board and no entrance : In this senario you can very well practise for CP after school homework is done in the evenings and at night and also on weekends, If you are state board, then its awesome since you wont be having many things to do except for school. Read CP books and practise a lot. Also this helps a lot in your +1 and +2 CS subjects.

Hope this helps you my friend :)

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