Hello people I know and people I do not know, people with whom I have interacted at some point and people who happen to be here for a random reason involving boredom. I have gathered you here so I can say one thing to your face before (some of…? Anyone hopefully?) you figure it...
Always be quick in dealing with levels! At first take your time to work out how to drop the pieces to complete it. Then when you know what you are doing go back and start the level over and do it as fast as possible.
Use the small reset button on the bottom right of the screen, this resets the clock and lets you start over.
Play the game, practice and you will soon be completing all the levels.