The amazing drop in quality of gpt chat

Since chat gpt0, custom gpts no longer work. no instructions are respected, they no longer have any use.

I therefore used gpt4, which wastes a lot of time because I have to constantly repeat all the instructions.

For 3 days, gpt4 no longer works and no longer listens to any instructions.

there is therefore no longer any functional GPT.

To put it simply, before, in an hour, I could write 3 perfect articles.

Now, in 4 hours, I can’t finalize a single article.

they are all useless. Is this normal?