do NOT try and cheat! Blizzard is VERY strict about this and has occasional purging sessions where over 3,000 accounts have been banned.
To get a jump on leveling I would immediately find a leveling guide on the internet. The quickest way to level is to quest, because most of your quests you happen to kill stuff to gain experience, so you get "exp" from killing foes and "exp" from the quests to kill those foes. I'm guessing your in a guild so your best bet is to hang out with the guild to help you with any quests you cannot complete by yourself. Keep yourself well equipped the entire road to level 70 (seeing you have the expansion) so you are able to kill and collect easier and faster.
My two cents! :-)
--DivineZeal
60 Paladin
Burning Blade
"Tribe of Judah"