I don't have the water bucket. I've gotten the pocket guide (x3), the gold bug net, and the super absorbent sponge (x3). But not the water bucket yet.Yeah, I had that problem. In the end I used my mining mount, endless bucket and enchanted sundial. Make a new small world and find the angler, fish for the first quest item and hand it in, wait for the morning then fish for the next quest item and hand it in, use the sundial and then fish for a third quest item and hand that in. That way you can get 3 quests out of one world in a fairly short amount of time. Then just delete the world and start again.
The mount and bucket really help, as you can get to any biome quickly and easily make a lake to fish in. The mining mount takes some work to get though lol