World of Warcraft players, come in!

I've been playing my Paladin the most and I'm having a lot of fun!
I've done quests most of the time, went to few dungeons with my guild and it was kind of fun. Tanking is kind of stressful at first
I also went to a battleground and didn't understand what was going on... the second time I went I died less and even helped killing.
But I'm kind of stuck right now... I finished quests in Loch Modan, Wetlands and Arathi Highlands. They were kind of chained and it was easy for me to know where to go next but after clearing every quest in Arathi Highlands I can't find any new quest that will lead me to the next spot.
I tried some of the "A hero's call one" but they led me to weird places where I died (or that are too low leveled for me).
I also tried following this

 Spoiler

so I went to Badlands but I wasn't able to do much. Right when I entered Badlands there were some spiders that I could barely kill... I think it's too high leveled for me so uhm... how do I know where to go next? D:

Stranglethorn vale is good for you either now. There is an alliance camp at the northern most part hard to miss coming south from duskwood.

also you can check out http://www.ding85.com/alliance_leveling_guide/. Follow it as much as you want, its more of a quick leveling thing for people with level 85s already, but you can still just check it out to see what zones have a lot of quest for your level and then go explore it on your own.