Well done releasing your first game! Mine is my first 'full' game too, so that's an accomplishment in itself :)
I found it quite hard to tell what to do with the fishing game in all honesty - I tried to hit Space bar when I saw something pop up but I couldn't understand if what I was doing was the right thing or not. I think a little playtesting with someone unfamiliar with the game would have uncovered this very quickly, so maybe try that next time if you didn't playtest!