Help! RSS feeds: Can anyone tell me how to set up one?

Help!  I am being held captive by the techno wizards.  I need an RSS or Atom feed to link my blog to my Goodreads account and I am not sure how to do that.  It is asking for the external blog feed URL.  i don’t even know if I have one of those.  I am not at ground zero, but I would not rate myself higher than about a two right now.  Any and all assistance would be greatly appreciated.  Sorry to be such a bother. ~ S.K. Nicholls