If you don't like questing, then you can manually zone into Ragefire Chasm at lv10 and it is possible to kill stuff at that level (and you get heaps of xp doing it). Run it 1-2 times and you'll ding the 5 levels required (assuming RAF) for lfg.
That said, it was a little difficult trying to heal it with a resto sham since it only has healing wave at that level; priest however already has flash heal and aces it. my resto sham was fine once it got some BoAs.