Anyone want to give any input for how to get an expert score on the fol…

Anyone want to give any input for how to get an expert score on the following levels: 10, 17, 18 or 23-25? They seem impossible, especially 10 because its so early on & you don't have the sawmill or much else but they want you to have the library and other stuff. But then again, 17 and 18 are impossible and I've already beaten the game. Just cant get all the stars.