"我豁出去了”属于汉语口语中的习语，译成英语也应该对应英语口语中的习语更为恰当，在不同的语境中可以有不同译法，比如英语中有个习语 “to throw caution to the wind”就接近“我豁出去”的意思，意思是to become very careless. 请看美国习语字典的例句：

1. Jane, who is usually cautious, threw caution to the wind and went swimming in the ocean.

2. I don't mind taking a little chance now and then, but I'm not the type of person who throws caution to the wind.

    如果单独来说“我豁出去了”，我看可以译为英语的一个习惯说法“I'm past caring now!”，这样看上去不论从文字形式，还是语意方面都比较对应。

我豁出去了。

这句话英语如何翻译为好？

I was ready to risk everything.

I will be prepared to run any risk.

I was prepared to make any sacrifice for anything.

I will go ahead regardless of any risk

I will shoot the works .

Shall I bet half our money, or shall I shoot the works?  

我该押上一半钱呢还是该押上全部赌注?

I'm going to the casino and will shoot the works on cards.  

我将去赌场,在纸牌上孤注一掷.

I'll shoot the works this time by giving you a treat in a five - star hotel.  

我豁出去了也要请你到五 星级 酒店搓一顿.

It works both delights and shoot - on the auspicious implies.  

故作品有喜上梅梢的吉祥寓意.

外语教学与研究出版社1988年11月第1版《现代汉英词典》：

【豁出去】go ahead regardless; be ready to risk everything

所以，“我豁出去了”也可以翻译为：

I went ahead regardless. 

I was ready to risk everything.