At the end of the day it's always me who gets nailed.

Thank you:)

What about "In the end of the day, I'm always the one whose ass is grass"?

Even though this is quite an old thread, I would just like to point out that the suggested translations are all a bit more drastic than the German, or at least than the German can be, depending (as always) on the situation.

"Im Endeffekt bin immer ich es, der dran glauben muss" can mean nothing more than "I'm always left holding the bag/I'm always the one who gets the short end of the stick/who gets stuck doing the dirty work" or any number of other possibilities, while "to bite the dust" means to die, and to "get nailed" and "your ass is grass" also imply serious trouble.