我现在处于人生的一个十字路口

十字路口作为具体名词的用法：

我们来到了十字路口. We came to a crossroads.
我们来到一个十字路口.We came to a crossing.

作为抽象名词的翻译是：a moment or point of decision

我现在处于人生的一个十字路口
参考：Now is a moment of decision of my life.
My life is at a point of decision.

I am at a crossroad of my life.

I am at a crossroad of my life now.

i'm standing at the cross road of my life now.

I come to the crossroad of my life.

I am now at a crossroads in life