I'm not native English speaker, so sorry for my poor English.

I used to be stronger than now. However, after the winter vacation's relax and problem setting jobs assigned by our training team, I am so used to vibe coding and almost lost my competitive programming skills. I cannot even solve a problem at rating 1000 during a virtual participation.

I asked ChatGPT for suggestions, and it gave me some suggestions like learning new algorithms like what I did before. At its opinion, learning new algorithms can make me find the sense of competitive programming. So I tried learning generation functions, game theory, and so on. But after solving some problems on them, I didn't find the sense I used to have, and my skills didn't promote either.

So I am asking for your suggestions. Thanks for your help.