self-discipline
n[U]
(power of) controlling one's own desires, feelings, etc, usu so as to improve oneself 自律(力); 自我约束(通常指为提高个人修养的)
an athlete's self-discipline 运动员的自律力
Dieting demands self-discipline. 节食需有自我约束力.
Yes, I'm sorry about that. I think we just had a misunderstanding about the plan, but I was very disappointed not to be going out. So I got angry and started shouting at you.