Making your first trek to a new carnival can be a daunting task. It can be full of risks like making noob mistakes with accomodation in bad areas or choosing lame fetes to party in.
One easy solution to most of these problems is to get help. Concierge services make life easier by getting some items for you and making things easier (for a price). They can also replace your solo trip with one filled with new friends and fetting partners if you choose a service that takes a group to carnival like LPTS or Carnival Addicts.
Take a look at some of the concierge services I know of and have heard no complaints about.