What kind of rig did you get? You'll find a whole new world of adventure out there, but stop to smell the roses. People will sometimes try to pack too much traveling into one trip, leaving you more worn out and frazzled than when you left. Start with fairly short trips first and become accustomed to your new home away from home. That way you'll know what to pack (and not pack) for those longer trips that are sure to come.
Stop back with any questions or concerns you have; we're here to help, and have many members with lots and lots of experience