It's alright! There's a multibillion dollar advertising operation working to convince us that generative AI can do these sorts of things. Plus, it's always tough to go through someone else's work, much less mods from a decade ago that were written by ambitious amateurs. I couldn't read my own code after a couple of months if I wasn't such an absurd over-commenter.
If you want a chill intro to the real situation, I highly recommend this episode of On the Media that had Ed Zitron on. You could knock it out over a commute or two no problem: https://www.wnycstudios.org/podcasts/otm/articles/brooke-talks-ai-with-ed-zitron
A funnier and angrier thing that explains why this won't work can be found here: https://ludic.mataroa.blog/blog/i-will-fucking-piledrive-you-if-you-mention-ai-again/
Look, AI will be perfect as soon as we have an algorithm to sort "truth" from "falsehood", like an oracle of some sort. They'll probably have that in GPT-5, right?