Maintenance for the week of August 3:
• PC/Mac: No maintenance – August 3
• ESO Store and Account System for maintenance – August 4, 5:00AM EDT (9:00 UTC) - 4:00PM EDT (20:00 UTC)
Not having an add on, Achievements are the best source in game
The following website should have most if not all the quests in the game, so you can figure out from the Achivements you have done what quests you have done and what quests you need to do