self-collected vs collected

self-collected and collected both are adjectives.

Word	Noun	Adjective	Verb	Adverb
self-collected	No	Yes	No	No
collected	No	Yes	No	No

As adjectives, self-collected and collected are synonyms defined as:

Other synonyms of self-collected include equanimous, poised, self-contained, self-possessed.

self-collected (adjective)	collected (adjective)
in full control of your faculties	brought together in one place
	in full control of your faculties