Put it right at the reveal of the fail, after the setup has played out, so it acts as the payoff. Open with the Ah Shit Here We Go Again clip to set up the doomed attempt, then follow it with the No God Please No sound to escalate the reaction even further.
Über diesen Sound
This is a short 2.5-second clip of a voice breaking into a sobbing cry of 'Mama Mia!', stretched out like a sudden outburst of grief. It feels dramatically over-the-top, funny because the despair is far bigger than the moment deserves, and instantly recognisable as a theatrical wail. It lands as pure melodrama, the kind of sound that turns a small fail into a tragedy.