I initially started doing fishmonger quests when they came out and was discouraged quickly and stopped. About 5 days ago I was talking to a guildmate and she showed me the ins and outs of doing the quests. She allowed me to utilize her fish stocks and I started grinding quests. 5 days later I got my 120. Along the way I got (1) 115...(11) 110...(8) 105 and of course tons of baits and fishing equipment. I also got the elusive book #5. Keep grinding and it should pay off.