そういらいらするなよ。急がば回れって言うだろ。

Don't get so irritated. Rushing things will cost you more time in the end.

そういらいらするなよ。急(いそ)がば回(まわ)れって言(い)うだろ。

Sō irairasuru na yo. isogabamaware tte iu daro.

そう (そう)

so; really; seeming; appearing that; seeming that; looking like; having the appearance of

苛々 (いらいら、イライラ)

getting nervous; irritation

な (な)

(sentence end, mainly masc.) indicates emotion or emphasis; (used with masu stem verb) command; (used with dictionary form verb) prohibition

よ (よ)

indicates certainty, emphasis, contempt, request, etc.; used when calling out to someone; used to catch one's breath or get someone's attention; yo!

急ぐ (いそぐ)

to hurry; to rush; to hasten; to make something happen sooner

って (って、て)

casual quoting particle; indicates supposition; if ... then; indicates a rhetorical question; indicates certainty, insistence, etc.

言う (いう、ゆう)

to say; to utter; to declare; to name; to call; to go (e.g. "the alarm went ping"); to make a noise

だ (だ)

be; is; indicates past or completed action; indicates light imperative

Readings: キュウ、いそ.ぐ、いそ.ぎ

Meanings: hurry, emergency, sudden, steep

Readings: カイ、エ、まわ.る、 -まわ.る、 -まわ.り、まわ.す、 -まわ.す、まわ.し-、 -まわ.し、もとお.る、か.える

Meanings: -times, round, game, revolve, counter for occurrences

Readings: ゲン、ゴン、い.う、こと

Meanings: say, word