Originally Posted by Iride01

Maybe you are fussing too much with them. Leave them alone and maybe it will go away.

If you aren't careful to keep cleaners and spray products away from the discs and pads, then you may be in a hopeless situation.

I don't see that you've mentioned you cleaned the pads and discs with alcohol. If not you might want to try that. But don't expect immediate results if the pads have soaked up oily contaminates.

I had squealing, squally rim brakes on a bike that took months to fix themselves. Note the key point there is that I let them fix themselves.