Though I have JEE advanced tomorrow I am feeling very cool as if there is nothing, is it good ?

Hey !
It is really cool actually.. Feeling tensed is a common thing for many of the students before an exam. But it isn't the same for every student. Some of them feel comfortable and completely normal..it is not something which you have to worry about. There is no need to give it a thought. Hope you prepared well.
All the best !

HEY THERE,

FIRSTLY HUGE CONGRATS TO YOU FOR SUCCESS. AND THE ANSWER TO YOUR QUESTION, WHO SAYS ITS NECESSARY TO BE AFRAID BEFORE YOUR EXAMS? THE COOLER YOU ARE, THE BETTER PREPARED YOU ARE. IN SIMPLE WORDS, YOU WILL BE AFRAID AND NERVOUS LESS IF YOU HAVE PREPARED IN A GOOD WAY AND SATISFACTORY MANNER. HOWEVER, IF YOU HAVENT PREPARED AND YOU ARE CAREFREE BECAUSE YOU HAVE NO CLUE OF WHATS GOING TO HAPPEN TOMORROW THEN THATS ANOTHER CASE. BUT I HOPE YOU ARE GETTING MY POINT.

AND ALL THE BEST FOR YOUR EXAMS.

Dear student,

It is absolutely the best to remain relaxed and cool before the examination. More the brain relaxes, the more you remain focussed. Being cool is never a sign that you haven't studied, but it shows that you are mentally prepared well enough for the examination. There is nothing to overthink on it.

Go tomorrow and rock the examination. I hope you'll do pretty well in JEE Advanced.

Have faith in you. All the best man!