Haven't you really tried an agentic code like Claude Code, Codex, AMP...? For "really try" I mean investing some time with it like 10-20 hours min to see the things they are good with and how to use them well. They are tools and have the corresponding learning curve.
I have passed through a phase of copy/pasting from the ChatGPT web to autocomplete tools, but the real feeling of "shit, this is going to really change how I code" came with Claude Code.