Abyssea is your starting place. Read up a bit on it, there's a lot to learn. But before that, go talk to Joachim in Port Jeuno. Like, right now. He'll give you a traverser stone. Got it? Good. Now then,
reading time.
Things to read up on first:
- Traverser Stones & visitant status (what enables you to enter Abyssea zones)
- Abyssites (key items that give you bonuses of various types in Abyssea, obtaining these is a good place to start inside Abyssea before trying to get experience/treasure)
Things to read up on before your first experience party:
- Abyssea Lights
Things to read up on before your first NM-hunting party:
- Weakness Targeting
- Atma