When a project has been botched by you and shows signs of collapsing, what should be done?
The correct answer is, of course, to find someone else to take over!
Whether the project is ruined or not isn't important; what's important is that it doesn't collapse in my hands!
At this point, you must find someone to take over.
Of course, this kind of thing also requires mutual consent, as the saying goes, "A forced melon isn't sweet." You can't force someone to take over a half-done project. Anyone, unless they're a fool, can guess that such a project surely has issues; whoever takes it over becomes the scapegoat.