落ち込むなよ

don't get down

→ 落ち込む
phrase Rare #41,426
don't get down A casual, reassuring way to tell someone not to feel down or discouraged. The よ adds emphasis.
JA: 失敗しても落ち込むなよ。
EN: Don't get down just because you made a mistake.

そんな落ち込むなよ!

Don't get so down!

そう落ち込むなよ。

Don't get so down.

落ち込むなよ、君を傷つけるつもりじゃなかったんだ。

Don’t be so down. I didn’t mean to hurt you.

落ち込むなよ

Don't let it get you down.

— ビッグ・シック ぼくたちの大いなる目ざめ (2017)