“过来人”就是
对某事有亲身经历或体验的人
“我是过来人”就是说
某人对某事有亲身经历或体验
在英语中
可以表达这个意思的有
① I ve been there
我去过那里
我也曾经历过
I ve been there的英文解释↓↓

② I ve been down this road before
我以前也走过这条路
我是过来人
been/gone down this/that road before的英文解释↓↓

上述两个短语
可以用于所有场景中
比如劝诫、同情、安慰、不耐烦
例句
I know how you feel. I ve been there. Don t worry, being disappointed in love is not a big deal.
我理解你的感受,我是过来人。别担心,失恋也没什么大不了的。
Trust me, I ve been down this road before. I know how to solve the problem.
相信我,我是过来人,我知道如何解决这个问题。

其中,如果只是表达不耐烦时
还可以说
Been there, done that
我做过了, 就那样吧
Been there, done that的英文解释↓↓

例句
A: You know what? I went to go bungee jumping last weekend. I was so exicted and scared.
B: Been there, done that.
A:你知道吗?我上周末去蹦极了,我真是又兴奋又害怕。
B: 我去过了,就那样吧。
