Any tips for a first time FF3-er?

[TrollHunter]

My team is always the same up to the 4th job crystal now, it's flawless and amazing.
Dragoon
Knight
Thief
White mage

I always thought the thief sucked at first, but then I was training it one time for odin... and it was kicking some serious ass and my opinion for them forever trained.
Knights are a freaking must now for me, seeing as they auto-guard near-dead members and can wield excaliber and the other really good end-game sword at once.
Dragoons are just my love really... this is the game that got me in love with them. Their jump ability allows for good damage and ability to avoid attacks for most the fight, and they look sexy!
White mage is.... it's a white mage.