I'm doing a quest where I have to save a girl from a band of orcs, which have resided in The Ruins of Ashford's hold. Problem is, I've spent THREE days (RL) inside said dungeon, going through red-brick walls and long winding path's that end up leading me to dead-end rooms.
The dungeon is infested with barbarians and warriors, not orcs, and there's a large lake in the center of the dungeon which contain some druegh and slaughterfish. I think I also met a vampire, but it kept killing me. I also only have less than 28 days left in-game to finish this quest.

So, can anyone give my any advice on what I should do? I want to finish the quest, but I don't want to finish it when I'm 80!

If all else fails, you can use Daggerfall's cheatmode. There is a cheat that cycles you around the dungeon's assigned quest locations. The readme for Daggerfall's 213 patch has the information on how to activate and use the cheats.

Thank you