私自身が

I myself

→ 私
phrase Rare #34,440
I myself Emphasizes that the speaker personally performed an action or is the person involved. The が marks 私自身 as the subject.
JA: 私自身がその問題を解決します。
EN: I myself will solve that problem.

私自身がやった

I did it myself.

申し訳ございませんが私自身が会合に出席することはできません

I’m sorry, but I won’t be able to attend the meeting myself.

私自身が手当てをしました

I treated the wound myself.

— HERO (2002)