I am a 30-year-old who has gained a so-called "neither here nor there" career abroad and returned to Korea, and is currently attending a boot camp to prepare for a job as a front-end developer. First of all, I have many regrets. I have worked as a developer for over 3 years (not sure if it is front-end or back-end), and I have often thought that this is not it, but I regret being lazy because it was annoying. If I had prepared a little bit by taking a little time every week, I wouldn't be suffering mentally and physically like this now. While working as a developer, I wasn't interested in trends, and when I returned to Korea, I didn't know about the Korean developer job market. Then, I happened to see Yang Dong-jun's YouTube video, and I ended up taking this course. I was very lost. However, I will not give up now that there is no alternative. I am old, but I will not rush. Through this course, I think I have some direction on what I lack and what I need to fill in. I am currently attending a boot camp and am in the process of putting together my fragmented knowledge. Apart from that, I will also try to fill in the parts that were presented in the lecture. I recommend this to those who, like me, are unclear about what to do.