I've heard of crawling basics < advanced < mysql. I'm going to listen to nosql. Pyo-ro-rong. I'm a complete non-major, but when I listen to IT lectures, there are so many cases where they explain things based on the assumption that you know this much, so I've been really stressed out. Since Janjaemi Coding's lectures are by a developer who majored in liberal arts, he takes great care to help students easily overcome difficulties they had while changing careers to IT. If you listen to the lectures consistently, pause the screen for a moment to practice the contents in the textbook, and follow along, by the end of the lecture... you'll get results that you won't believe you did. I highly recommend it. I would really appreciate it if you could make all the lectures you've planned, even if you're busy. Stay healthy~!