No. You only control creatures on the battlefield and creature spells on the stack. Anywhere else they are creature cards that you own, but do not control.
109.4. Only objects on the stack or on the battlefield have a controller. Objects that are neither on the stack nor on the battlefield aren't controlled by any player.
Though if you control the cards in your graveyard isn't really material, Otherworldly Journey still couldn't target a creature in a graveyard, this is because if a spell or ability doesn't have any sort of qualifier on it (like Creature spell, Land card) it means a permanent on the battlefield.
109.2 If a spell or ability uses a description of an object that includes a card type or subtype, but doesn't include the word "card," "spell," "source," or "scheme," it means a permanent of that card type or subtype on the battlefield.