Hey Shelly, I'm sure we all feel the same way to some extent, I know I'm nervous. So many of us if not all have been there and done the diet thing. There are a couple different factors that will determine if you need a sleep study and other tests, not everyone is the same. It really depends on how you will be paying for the LAP-BAND, such as self pay or through your insurance co. Just try and soak up as much info as you can from the seminar and don't be afraid to ask questions. I bet you will walk away fairly confident in your decision. Good Luck and we are all here for you.