I already tried to type "sudo sh NVIDIA-Linux-x86-185.18.14-pkg1.run" to install the driver and it give me another error message.
Maybe I'm missed something.
Yes... you have forgotten to tell us that last error message.
that you do not have the kernel headers installed.
However: doesn't mint have that driver as a package in the repos these days?
menu > system tools > hardware drivers
system > administration > hardware drivers
... someplace like that?