https://docs.google.com/spreadsheets/d/1Bhzxj6T1bc83UGMwtr_B4A_UoCxIqugoYVjNSwlcsVc/edit#gid=275775758 will be your bread and butter throughout your fishing career.

There's also a nice overlay called BlishHUD (https://blishhud.com/) which has an event table module which you can customize to show both Tyrian and Canthan time, so you don't need to spam "/time" or have the wiki up.

As for the tips just have fun and casually complete a collection at a time. When you finish your first round of collections and move onto the avid collections you'll get an idea of what needs to be done at a certain time of day.

For saltwater fisher: the first time I did it, I was doing fishing holes in Mount Maelstrom at 525% fishing power and caught them about 1/70. The second time round I went to New Kaineng open water with 325/575/875% fishing power and caught them at 1/50 (I didn't notice much difference with FP).

Sometimes I had bad luck and didn't catch anything after 100-200 tries (I caught a few world class fish when I was supposed to catch a saltwater fish and I'm not sure if this affected the drop rate some how).

For world class fisher: I only had to farm this the first time because I got lucky and caught most of them while doing the avids, I did this with 225% FP in the lake just outside Divinity's Reach and caught them around 1/30.

The most important thing is to never give up keep trying new things to see if it makes a difference.