self-control vs self-will

self-control and self-will both are nouns.

Word	Noun	Adjective	Verb	Adverb
self-control	Yes	No	No	No
self-will	Yes	No	No	No

As nouns, self-control and self-will are synonyms defined as:

self-control and self-will: the trait of resolutely controlling your own behavior

Other synonyms of self-control include possession, self-command, self-possession, will power, willpower.

self-control (noun)	self-will (noun)
the act of denying yourself; controlling your impulses	resolute adherence to your own ideas or desires
the trait of resolutely controlling your own behavior	the trait of resolutely controlling your own behavior