Experience:  First hand knowledge by direct participation

You are visiting a new town abroad for first time. A sense of uncertainty prevails
Visiting same town again. The confidence has grown. That’s what experience do- put fears to rest.

Learning from text book is one thing
But sitting in exam is other

Textbook is in your hand and you feel it

Exam will happen only once.

Few unrelated areas not spelt in text book - time management, nervousness,
impact of negative mark, benchmarking can make difference

Exam will happen once but can be simulated earlier to gain experience

Experience generates confidence and will put many doubts and fears to rest