How can i navigate your page for learning especially taking practice after each chapter because till now seems to be tough for me to learn through your page
I’m not sure I understand the question. Are you asking about navigation or how to learn?
You seems to be asking about “taking practice after each chapter”. If you feel that a section did not teach you well enough, you are free to seek out materials to help you learn better. FCC does not claim to be comprehensive, but it makes a good learning framework. When I was learning, I often took little side trips to work on something extra.
But I advise to stay on the path - don’t divert for too long. And realize that you will never memorize all of this stuff or learn it perfectly - it’s more important to learn the basics and what is possible and get good at searching for the answers - I am googling things all day.