余裕なんてないよ

I can't afford it

→ 余裕
phrase Rare #35,283
I can't afford it An informal emphatic way to say that someone has no time, money, energy, or general capacity for something. なんて adds dismissive emphasis, and よ adds assertion.
JA: 今は旅行に行く余裕なんてないよ。
EN: I can't afford to travel right now.

休みを取る余裕なんてないよ

I can't afford to take time off.

家を買う余裕なんてないよ

I can't afford to buy a house.

車を買う余裕なんてないよ

I can't afford to buy a car.

買える余裕なんてないよ

I can't afford to buy it.

テニスをやる余裕なんてないよ

I don't have time to play tennis.