Thank you for the great lecture. At some point, I started to worry about quitting development for various reasons. Even though it was fun and I liked it. After listening to the lecture, I realized why I could learn and start easily in the past, and now I can check and understand why it is difficult. I encountered a problem that was not suitable for the difficulty level and had to find a suitable method, but I thought the existing method was wrong, so I changed the method I was doing well to a bad one, and it took a long time to solve the problem, and I think the changed method became a habit. It felt like a user manual for my body, so I was able to learn how to interact with the subject of study and countermeasures for problems I encountered during study. I got good advice at the right time, no, it was very late, but now. Thank you very much. It is unfortunate that I can only see it for 3 months because the course period is short, but since it is a topic that brings compound interest, I should try to make the content of the lecture completely mine within 3 months. (__) I hope I can see the Q&A offline again. ㅎㅎ