This was a process that provided foundational study on multithreaded environments and helped me understand why we learn input/output functions and function pointers in the C language. ====== This time, studying system programming gave me an opportunity to review C language input and output. (I had looked at it about twice before, but since there was no situation where I needed to use it, I quickly passed over it.) The most difficult part was the WIN32 file input/output section. Before that, I had familiarized myself with CS fundamentals and OS operating system parts, so I had no difficulty adapting, but I had never seen that particular part before, so I didn't understand what it was saying... I didn't know how to write the examples, but after reviewing it 3-4 times and taking a day's rest, strangely the content seemed simple and I understood it. Of course, studying why data types and functions are called and used with the help of Copilot and GPT was a bonus. === After going through the above process, I'm planning to move on to socket programming - network programming learning. I happened to see content saying it would be good if I could practice with 4 computers since there are many computers at the academy(?), so I think it's perfect for studying. === Lastly, I'm writing about the situations I'm currently experiencing, thinking it might help those who are going through mental difficulties. (Currently in my 3rd month of backend study targeting Java Spring (looking at a minimum of 1.5 years)) Currently, I'm working 7 days a week from Monday to Sunday. (Monday-Saturday: 6:30 AM - 10:30 PM / Sunday: 7:00 AM - 10:00 PM including commute time) --- From last week to this week, I've been really worried about money. The money I earn working from Monday to Sunday is 160, but if I give up studying and work longer hours, I could earn 260 to 430. So I had the impulsive thought that it might be better to work intensively and earn money. The cause of that impulse was that currently, with AI, the IT industry standards themselves have been leveled up, and what I'm aiming for is server development - can't GPT and AIs that learn from Google developers' code reviews keep up with that? I don't know the path ahead, so wouldn't it be better to frantically earn money... Can I really do better than AI once I pass in this industry and build experience? I severely suffered from depression due to such anxiety and worries. Currently, I rested well for about 3 days until yesterday and organized my thoughts. There's no right answer, and since the studying I'm doing now is fun, let's go with this! Since I don't know how the situation will turn out later, let's save money as much as possible! I brushed it off in that direction and am studying again. They say anxiety is excessive worry for my future self to do better / and helplessness is a signal to recharge emotional energy. Everyone must be having a hard time, but fighting!