I think the fishing mechanic didn't work for me? It always ended abruptly and I don't know why and also the boat could be faster. But overall it's pretty and can see this as a full game in the future! :)
Ah! So you can only fish when you are in proximity of a fishing spot. I suspect what happened is your boat kept drifting forward while you were fishing and left the spot.
Ooh makes sense, I think stopping the boat automatically for the player could be Quality Of Life improvement, but making the whole game more realistic and challenging is also a possible way where to aim your game! :)