自己 じこ主張 しゅちょう
jikoshuchō

Noun
Suru Verb

1. self-assertion

Intransitive
きみはもっと自己 じこ主張 しゅちょう こころみたほうがよい。
kimiwa motto jikoshuchōo kokoromita hōga yoi.
You'd better try to assert yourself more.