The Don’t exist injunction is different in that it is a belief a child takes on in childhood. The child basically comes to the conclusion that its own death is a viable solution to a problem.
One does not seek to do therapy on this aspect of the personality but one embraces it and seeks to develop some kind of coexistence with it. One embraces their depression or learns to love their panic attacks one could say. It is accepted as a normal part of their thanatos. it can’t be changed even if one wanted to.