让它发脾气吧

let it go───任它去，放下

cut it out───停止；省省吧；闭嘴

get it on───兴奋，激动

let in for───使陷入（困境）；损害

let in on───vt.让…参与，与…分享；让…知道（秘密），告知

let it rip───顺其自然；任其发展；开足马力

let sb go───放某人走

Years ago, when I was experimenting and working on methods for forecasting the market, I would get in the market wrong and lose all my working capital, but I never let it get my "goat."───多年以前，当我还在实验并总结市场预测中的法则的时候，我犯了很多错并失去了我所有的运营本钱，但是我没有被打倒。

I will tell you only a little then let it goat that.───我会告诉你一点点然后不再说。