What bosses are you having trouble with? I soloed it with my storm and the only place I remember needing a friend was Belloq, and even a low level friend can help with that. Just need someone to cast wand or fire sprite on him while you blade up. I don't remember having any trouble with other bosses until Mirror Lake, but that's easy to join farming parties.
its ok :] dont rush into the next world I didnt leave ZF until i was maybe level 72 or 73. Its good to be at a good level before going to next world more experience less likely to get defeated in certain battles.
I am completely over leveled. Not sure how it happened, but i am level 73 and just started stone town in Zafaria. But nothing to complain about right? Except some quests get very repetitive with having to kill 3 or 5 or 8 sometimes even 10 of some monsters.