影视英语口语:适可而止

“适可而止”在英语口语里能怎么说？

蹩脚口语：enough
地道口语：enough is enough

影视来源：《绯闻女孩》

剧情引导：
机缘巧合之下S成了大明星的好朋友，当上了助理。出于友谊的冷静相助，毁了经纪人炒作的好机会，S的第一份工作就这么丢了，她的母亲依然让她去布朗大学......

Serena: I got fired. K.C. wanted Ursula to have a meltdown in front of the press, and I told her not to, so K.C. fired me. I guess you were right.
Lily: Well, it's for the best. you'll love Brown.
Serena: Mom, I'm not going to brown. Maybe next year, but not now.
Lily: What are you talking about? You're all packed.
Serena: If this year is about finding out who I am, then I can't do that and live here.
Lily: Serena, enough is enough. This need to find out who you are-- do you think anyone really knows who they are? We don't. we just live.
Serena: So that's it? that's your advice--to give up? I'm sorry, but I'm not gonna do this your way.