I listened to the lectures in reverse order, Chatbot -> YouTube Clone -> React Basics lol At first, I only watched Chatbot, but I liked the lectures so much that I listened to two more!! Later, I definitely plan on paying and listening to the online lectures at the shopping mall In my opinion, the difficulty level goes in the order of YouTube Clone >Basics > Chatbot!! If I had found these lectures at the beginning of the year, I wouldn't have bought old and strange foreign books and wasted money... Thank you, instructor \(@ ^ 3 ^ @)/ Work less and earn more!!!