Usage patterns
自己を確立するto establish one's identity/sense of self
He established his sense of self through studying abroad.
自己を犠牲にするto sacrifice oneself
She sacrificed herself for her family.
自己を見つめるto look inward at oneself; to engage in self-reflection
It's important to have quiet time to reflect on oneself.
自己をコントロールするto control oneself
Athletes always need to control themselves.
Expressions
自己保身self-protection; self-preservation; looking out for oneself
