Grinding that 2nd and 3rd class is brutal. Hunting logs for sure, then just repeat levequests at or below your level, I was doing level 10's at level 13-14, decent and quick exp. then catch a fate if it popped in the area I was in. Main story line and dungeons help too. But they are going to have to do something for the basic "go to way" of leveling outside of these options.