Q: My fish nibbles at the bobber but never bites
A: All fish that nibble at the bobber will bite (or have already bitten) within the first 4 attempts. Maybe you don't realize when they're biting. You want to look for when the bobber dips below the water, and press immediately when that happens. (If your frame rate is bad and the bobber never quite dips below the water, look for when the bobber dips more than usual.)
- If you're using a controller that vibrates when the fish bites, some folks find it easier to press when they feel the vibration.
Q: The fish don't care when I throw the bobber near them
A: As you advance farther into the game, the fish require more precise bobber placement. (Put another way, the early-game fish are easier so new folks can get the hang of fishing in general.) Try to land your bobber right in front of the fish (in the direction that the fish is facing) and very close to its mouth.
Q: I fished up a recipe earlier today, but since then I've fished hundreds of times and not gotten a new recipe
A: You can fish up at most one recipe per day