Poetics, poetics, poetics. Grind poetics (beast tribe quests and daily roulette are great ways to do it) and use it to buy Ironworks gears. Ironworks gears are a godsend for fresh level 50 players.

I remember when I was a fresh 50 PLD back before Ironworks was a thing, doing Wanderer's Palace. The BRD in my party has more HP than me, and he ended up leading the way without saying a single word. Such is the way of Asian servers, where people never say anything unless you make a noticeable mistake.