couldn't afford itLiterally means “there was no余裕.” Depending on context, 余裕 can refer to money, time, energy, or mental capacity, so it can also mean “didn't have the time” or “didn't have room for it.”
JA: 忙しくて、友達に電話する余裕がなかった。
EN: I was so busy that I didn't have time to call my friend.