self-identity
noun /ˌself aɪˈdentəti/
  /ˌself aɪˈdentəti/
[uncountable, singular]- the way somebody considers their characteristics as a particular individual, especially in relation to the social environment they live or work in
- She has a strong sense of self-identity.
 - The main character is a young woman who is on a quest for self-identity.
 - As a teenager, he struggled with self-identity.
 - Play can help children develop a positive self-identity.