I failed? You can’t show that the apostles taught what the RCC teaches and claim I failed? I showed clearly that if the apostles didn’t teach something it’s to be considered “another gospel” and accursed. Obviously you failed to show any other source of what the apostles taught. That still leaves us with scripture as the sole source. AKA Sola Scriptura.
If you can’t prove sola scriptura, then you fail every time you demand that someone else act as if it true.