consciousness vs self

consciousness and self both are nouns.

Word	Noun	Adjective	Verb	Adverb
consciousness	Yes	No	No	No
self	Yes	Yes	No	No

As nouns, self is a hyponym of consciousness; that is, self is a word with a more specific, narrower meaning than consciousness:

consciousness: an alert cognitive state in which you are aware of yourself and your situation
self: your consciousness of your own identity

Other hyponyms of consciousness include stream of consciousness, ego, awareness, sentience, aesthesia, esthesia, sensibility, waking.

consciousness (noun)	self (noun)
an alert cognitive state in which you are aware of yourself and your situation	your consciousness of your own identity
having knowledge of	a person considered as a unique individual

consciousness (adjective)	self (adjective)
	(used as a combining form) relating to--of or by or to or from or for--the self