Well... I suggest you stay away from leveling potions. Get to learn your class and get good at being a bear. I would also suggest perhaps restarting and making a premium character that will have you set with gear all the way to 15. Buy vanities if you think you'll wear it a lot they are not a neccesity.

Also take a gander at our guide section which is packed full of helpful info and stuff to guide you on your journey.