cleaning a toilet help needed!

Regardless of what cleaner you use, turn the water off to the stool, and flush the stool as normal, to get as much water out of it as possible. This will keep from diluting the cleaner.

I had the same issue. Used a regular toilet cleaner and some CLR. It took a few days, and multiple tries, but got it clean.

In the future, clean it more often to prevent this issue.