The curse of AI

Hey people, today is a really bad day here.
I waste the entire day to try to make AI execute a simple task list and absolutely nothing worked.

I gave literal instructions to the AI, but it simply didn't obey.
I gave only ONE TASK to do, and AI can't manage execute it.
I asked to the AI clean all the URLs found in some files and it simply didn’t do it. It just ignored the URLs.

- read the file content
- delete the URL you found in the content
- save the file

And during the entire day AI simply could not manage to do it!
One time it ignores the URL.
Other time it just edited the content of the file.
Other time it just deleted the URL and part of the text.
Other time it simply stay on loop analysing the files.
EVERYTIME it makes some kind of stupid shit other than I just asked.
It's out of control here. AI simply is not working. Is not obeying the instructions. Very ultra simple basic instruction.
I put rules, I put literal instructions, I changed the model, I even changed the IDE.
Gezzz... it's literally like a curse. The AI simply is not working.
I'm very angry trying to understand what in the world is going on here.