Hi,

You should focus purely on studies for atleast one year , you must not think of studying for limited hours a day . Obviously if you think about time all the time ,you will face difficulty in concentrating on subjects rather you should make weekly goals and no matter how much time you would have to study but you must complete that task before the deadline . And ofcourse keep tasks a little lenghty , so that you atleast feel exertion after a day's study and practise . Remember one thing “if you feel that everything is comfortably being done by you then it is sure that you are going on a wrong path” , preparation for JEE adv requires extreme hardwork and dedication and believe me “its not easy".

If you are enrolled in a decent coaching center, the best advice I can give is to stop serking advices on internet and trust your teachers. Do what they say, ask them your doubts and take inspiration from students who have cracked jee under your teacher's supervision.