How do you say "I can't do this anymore, even breathing is difficult", in latin? Thanks.?

Answer 1

Hoc diutius non possum facere, etiam spiramentum difficile est

Answer 2

I would suggest ..
"hoc facere non iam possum, nam difficile est etiam spirare "
~ I can no longer do this, for it is difficult even to breathe..

"non diutius" is also possible for "non iam" if you are referring to a situation where a long time has already passed.

"spiramentum" is not a Classical prose word for breathing, more like a breathing space or air hole.