From what I know, Wellbutrin isn't really a med that's commonly used for anxiety. In fact, it can often have the effect of making it worse. {REMOVED} I would personally try Lexapro, Zoloft, Prozac, or Serzone (just be sure to get liver tests done with that one) first, since they are all used for anxiety. Even though they work similarly to Paxil, people tend to respond differently to them, so just because Paxil didn't work for you doesn't mean the others won't.

Good luck!