Uh have u ever considered making a 4 man party of rogues and queing up for low level dungeons tht is close to the party's level?
As long as u bring pots and ethers along with cure, stoneskin, protect and second wind along with some tank or emnity skills ur group will be fine.
The dps on 4 ninjas is pretty crazy and can finish a dungeon in 30 mins or so.
1 run while killing most mobs = almost 2 levels + dungeon gear.

Fates are soooooo long now due to the odin horde clearing every fate thus increasing the difficulty of the fate.
Instead of one person being able to solo a boss fate, it takes almost 2 whole parties of rogues to actually chunk its health down.