How am I able to print all of that data inside of my datastore database without knowing the keys?
Every example I've seen uses OrderedDataStore, which isn't released yet.
Currently there is no way to get all of the keys within a datastore.
However, you can manage a list yourself by having a main key that consists of a table of all other keys. Whenever you create a new key, call UpdateAsync on the main key and add that new key to the table.