If you are following a guide and it seems like you've done everything right there is something I learned that has helped me a few times.

Many quests require the quester to be the leader of a group or by themselves when they go into a region or even flying to the top of a temple. If you have to fly somewhere, your character may actually have to be the user of the flying vehicle.

Spoiler:

Level 156 fire
T4
90% of the laws are made because of 10% of the people.