if I were in your shoes不要理解为“如果我在你的鞋子里”，而真实含义是如果我是你；如果我处于你的位置的话；如果我处于你现在这种情况的话。

【例句】
I would fire him if I were in your shoes.
如果我是你的话，我会解雇他的。

If I were in your shoes, I would gave up the project.
如果我处在你的情况下，我就会放弃这份计划的。