3rd year undergraduate at IIT Madras, IIT JEE Physics Tutor
Maths is a subject that has very few concepts but requires lot of practice. I would suggest that you read all the concepts of a topic before, understand them thoroughly, and try solving subjective type problems first and then the JEE type problems. The subjective problems will help you master the concepts and then practicing the single concept will help you increase your speed. Also try doing only one topic per day.