My surgery is scheduled for September 27 and I completely relate to everything you've said. I am so nervous and I'm on day four of my pre-op diet and I'm super grumpy. Apparently it's withdrawals from the foods and sugars I can no longer have. I know I can stick with this, but it's really overwhelming. I have found that praying works wonders when I start to feel too overwhelmed. Good luck in your journey! You can do it!