Advice For Level 53+ While Leveling?

[Apatheist]

As Vipeax said, I always head to BRD asap.

There are a ton of mobs there for grinding but the bosses also drop a ton of useful loot for just about every class. Even the quests have really nice rewards.

Also, the humanoid mobs in BRD will debuff your tank with curses and DoT's that will periodically stun your tank, reduce healing, etc. Make sure you are macroing decurses between arcane explosion spam. Being able to decurse easily is one of the benefits of mages as DPS. If your tank feels extra squishy in BRD, that might be why. You can't block/dodge/parry while stunned.