I think I'm about 60% through the course now. In the process of listening to the lectures, acquiring, and organizing, I listen to the lectures on weekdays (including live coding), and when the chapters are over, I search for important concepts on the blog + parts that will be lectured in the future, and fill in the content in my own way through search. Then, when the lectures are all over, I organize them by connecting what I learned through the mind map tool, and on the weekends, I revise the summary I wrote and read it again. In addition to live coding, I think I'll spend my time on weekends or public holidays by creating a toy project. Based on the concepts learned through DB1~2, I made a simple statistics tool that receives complex stat requests using the API of LoL or Battleground (because I like games), builds it in the DB, and spits out the necessary information without using a web framework. I solved complex statistics queries with MyBatis queries and implemented simple CRUD with JPA to create a Discord bot. I thought this principle was not propagated because it worked well even when I just thoughtlessly added transactions in a toy project, but the lecture pointed it out right away, so I was able to understand the phenomenon and use it better. I still lack knowledge about databases (sql or table design), so I need to finish the advanced Java version quickly and wait for the DB lecture. I only left similar reviews, but this time I shared my study system. Thank you, Younghan:)