In Python Tkinter, I have successfully made a keybind but it only
  works when I am clicked into the tkinter window.

I want to be able to use the keybinds even when I am interacting with other programs even when they are full screen. (I am making an auto clicker and it is not possible to open the tkinter window and then click the key when you are mid game.)
You cannot do what you want with tkinter. Tkinter bindings only work within windows created by tkinter.
In Python Tkinter, I have successfully made a keybind but it only works when I am clicked into the tkinter window.