I have completed my 10 studies and opted for science with the computer science branch because I want to make a entry in Indian Navy as a technical (software engineer). So can any of the experienced officers suggest me what to do in the next two years till twelfth, means what type of routine (exercise, diet, extra studies for UPSC Exam) should I follow and what additional efforts should I put in as according to me I have a good height but not muscles(width)? So please help me.