Welcome to the pond!
I've played this game all the way through several times myself. Quite enjoyable, and I found it relaxing (but would have preferred the option to omit the timer). I don't remember anything about gold stars, but it's been a while since I played it last. I do remember needing to cheat on some of the levels: if it looked like I wouldn't survive, I would click the X in the corner (playing windowed mode) to kill the game immediately. Then I would restart the game, which would restart that level without the loss counting against my number of lives.