50-60 is the very worst levels a Monk can go through. Parties everywhere want to fight thick shelled enemies, like crabs and beetles, which Monks are bad against. Everyone wants to make a Distortion Renkei, which Monks cannot do. All I can say, is don't give up seeking,(I once spent like 5 days seeking for 5 hours a day with no parties) or make your own parties. Just stick with it, it pays off in the end.