OK to my ears, but very formal: "Nothing else matters: Neither my job, nor anything." OK, informal: "Nothing else matters: Not my job, not anything." OK: "Neither with all the remedies in the world, nor with all the cosmetics, will these wrinkles ever go away" OK: "Not with all the remedies in the world, nor with all the cosmetics, will these wrinkles ever go away" How I would more likely say this as a native speaker (informal speech): "Not with all the remedies or cosmetics in the world, will these wrinkles ever go away" Textbooks would not pair "not" with "or", but "nor" is pretty formal and you don't hear it much in casual speech.

1) Use not in those sentences. Using neither suggests only 2 options. 2) No need to use "it" in these sentences