Problem with GuiFont - Not appearing

Hopefully this isn't a repeated question, since I wasn't able to find anything when searching...

So I'm in a class and am creating a simple game which involves collecting objects. I'm trying to add a Kill Counter, so that the player knows when they've collected all of the objects, but I'm running into a problem: no script shows up on the screen.

I can see that the code is at work correctly, but I still am unable to see any sign of my kill counter on the play screen.

My teacher and I thought this might have something to do with the GuiFont itself, since there's no Font specified when I attached the GuiText. I figured this was easily remedied, however, I couldn't figure out how to change the Font.

TL;DR

Do I have to upload a Font somehow in order to be able to utilize it in Unity? Or is this much more simple of a problem that I'm just overlooking?