Well try arcade mode you will see that in the fish perspective you will see more fish (dead ones), I didn't put any fish in the fish perspective in story mode to show that he doesn't find any food.
The trash will take some of your money probally you didn't observe it, try it again if this happens again than I will go check again the code cause the trash will take you money and if you miss in the minigame you lose some money too, depending on which fish you lost.
I thought to not make the game harder to keep it simple and easy so the story mode can be enjoyed by everyone if you want a harder version try arcade mode, you will see that there the game will be more fun and chalenging!!!
Thanks for the feedback!