If you're seeing that your efforts are being wasted, then that means you're in a good spot to half-ass the solution. Use the other half for things you find meaningful to prevent burn-out.

Not sure if it applies to your situation, but I know the perspective helped me, that if you're neurodiverse (especially autistic) then "just let it go and accept you're being paid" was advice that _never_ helped me. I'm autistic. That's just not how my brain is wired to work. I needed different strategies to get to a better place.

Scaling how likely a given direction was to actually be implemented, then giving an appropriate amount of effort, helped a lot. Then I could spend my time on what I _should_ be doing. Like refactoring, learning new libraries, or just reading a book.

I hope it gets better for you.