When I was eleven years old, it was a very good year, and I can remember my daily routine vividly. These were the years before I owned a Sony Playstation, and I used to venture to my friends house - everyday after school - to watch him play through Final...
Use your first few passes on a level to memorise the layout.
You'll get a higher score if you don't use bonus items.
Try not to obscure the screen when you play - that applies to both sides of the device.