Calculus - The First Time You Meet It

Aditya says he was good at math, as to get 80 or 80 marks. But on the first day of coaching that taught us a differential and integral calculus, i found it very difficult. My confidenceis has suddenly gone down. I used to be a topper, but now i'm feeling that i'll become the lowermost student of mat. The same thing is happening for chemistry, physics, et cetera. So what do youdo? Simple, solve problems. Take a book of problems of calculus. Do it for three months, see what happens. Your confidence at the end of threemonhs will be sky high. There is no substitute for hard work.