Well, I've played this game, restarted, getting zodiac spear and currently farming LP at 40s(Vaan, Bashe, Penelo)

TIP ON AUTO FARMING LP & LITTLE EXP(around 350-420)ONLY FOR BEGINNERS

go to henne mines and look for jelly and begin the petrifying on the jellys, recommand having syphon before starting and update all gambits til judge bergan

GAMBITS:
Foe:MP <30% =syphon
Foe:any=break

healer/buffer have extra
Ally:any=raise/arise
Ally:HP <70%=Cura (curaja is not recommanded)
Ally:any=esuna
Ally:any=Haste

then relax, off your tv(not the console) and wait for 1 hours, you'll see the result