If you are not adverse to looking online for help then there are a number of websites with maps of the major areas and the quests they contain. http://teso.mmorpg-life.com is one I frequent when I become lost or need help. Remember that when you are looking at your map when you see icons that are outlined in white but are blacked out in the middle of the icon this means you still have quests to do related to that area or discoveries to make. The icons will white when you have completed that areas main quest. These are not the only quests however. Some quest givers will be placed randomly throughout zones, and you can even get some quests from drops from your enemies. Sometimes enemies will drop letters or special items that when you examine in your bag will trigger a quest. Also consider doing the delves (public dungeons, the torch icon on your map) in each area as they contain lots of enemies, loot containers, a boss with loot and XP, achievements, and a skyshard to give you more skill points.
If you are not sure what areas you missed out on quests in, check your achievements under the quest section. This does not tell your what quests you had completed, but it may give you and indication of how many you missed under each areas achievement.
the level 24 area is at the end of the second zone. level 29 is near the end of the third zone. it seems you have been skipping a lot of content.
What alliance are you in?
Did you make sure ALL map icon's (except maybe the group dungeon) is showing "white" on the map in the first two maps and on the tuturial island?