I can't uninstall Homebrew. How can I find and remove all of my Homebrew files and re-install it again? I've deleted a main Homebrew file and now I can't un-install Homebrew. I want to un-install it and then do a fresh install. This is what I'm getting in the Terminal...     

host:~ user$ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
It appears Homebrew is already installed. If your intent is to reinstall you should do the following before running this installer again: ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"
host:~ user$  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"
Failed to locate Homebrew!


I'm bit of a rookie as you can probably tell. How can I sort this? 

The main goal is to set up the MEAN stack.

Thanks in advance.
Uninstall Homebrew

From the Homebrew FAQ:


  To uninstall Homebrew, paste the command below in a terminal prompt.

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"