僕だったら

if it were me

→ 僕
phrase Common #6,726
if it were me A conditional phrase meaning “if I were in that situation” or “if I were the one.” 僕 is a relatively informal first-person pronoun, commonly used by male speakers.
JA: 僕だったら、そんな危険な場所には行かない。
EN: If it were me, I wouldn't go to such a dangerous place.

僕だったらそうはしない

I wouldn't do that if I were you.

僕だったら勉強するけど

If it were me, I’d study.

僕だったら何が何でも逃げ出すけどベイツさん

If it were me, I’d get the hell out of there no matter what. What about you, Mr. Bates?

— サイコ (1960)

僕だったらそんなずうずうしいことは言えない

I could never say something that presumptuous.

僕だったらそれはやめておくな

If I were you, I'd steer clear of that.

僕だったら断る

If it were me, I'd turn it down.