I created a character on a prefered world and through main story + side quests that unlock things (blue icons) and 0 roulette or random side-quests, I can easily level 2.5 main jobs.
Did WHM (with a bit of RDM to dump a bit of excess XP) to 60 and unlocked DNC and now just starting StormBlood expansion with WHM 70 and DNC 69