notadictionary.com
自分でシフト入れてるのに被害者面しながら出勤
→ “I'm the one who put in my own shift, yet I show up acting like a victim.”
自分 jibun = oneself (pronoun)
で de = by / with (particle indicating means or agent)
シフト shifuto = shift (loanword from English 'shift')
入れてる ireteru = putting in / am putting in (colloquial contraction of ~ている)
入 ir = to enter / to put
れ re = passive/causative stem marker
て te = connective particle
る ru = present progressive auxiliary
の no = because / since (conjunction particle emphasizing reason)
に ni = while / at the same time as (particle indicating concurrent action)
被害者 higaisha = victim (noun)
被 hi = passive / receive
害 gai = harm / damage
者 sha = person / doer
面 men = face / mask (noun)
しながら shinagara = while doing... / as...ing (conjunctive form expressing simultaneous action)
し shi = stem of suru (to do)
ながら nagara = while / as
出勤 shukkin = going to work / attendance (noun/na-adjective)
出 shutsu = to go out / departure
勤 kin = diligence / work