Having worked in milling for all my life, this game is terrible. Why would a cow do damage to a grader/skidder? shame on the dev for making insinuations!
add more rods ( lowers timer on fish appearing)
River monster (mega cash)
Bait (more chance to catch rare/monster)
Reel quality (adds % to reel speed)
Boats (to go offshore and hunt marlin,sail fish, etc)
get all upgrades unlock to catch the Kraken (future badge)
cemetery is just a drops area, you should item there then head back to forest