July 19th Scared and Anxious!

July 19th is the day I have been dreaming about for the last 16 months (self pay)!  And now that it is less than a week away I am finding myself scared out of my mind! 
Am I going to fail (like I have every other diet I have tried) is the biggest fear!  I have 40 years of bad habits to learn to counteract!  I know that I am giving myself the biggest tool to help myself, but I truly cannot fathom successfully losing weight! 
I look at the before and after pictures on a daily basis to stay encouraged, and that really does help me stay focused. But now that reality has checked in I am down right scared! 
Nightmares are a nightly occurrence for me, I even had a dream that when I was in the pro-op room the nurse that came in asked if I was here for my transgender reassignment surgery???? 
Today I had that "empty pit" in my stomach I used to deal with, with food. I did not give in and I realize that in and of itself it is a victory!  I would have eaten everything in sight and I did not! So I will give myself props for that, but I am back to being anxious! 
I guess I am posting this to find out if anyone else is or maybe had experienced what I am going through?  And if so, how do/did you deal with it? 

I'm scheduled for tomorrow and I feel like my heart has been pounding all day long. Seriously, pretty darn scared. I doubt that I'll be able to sleep tonight.

Wish I could offer help, but at least you know you're not alone.

Thank you so much for your words, sometimes it's just nice to know that you are not alone in these things!
Best of luck tomorrow, I will keep you in my prayers!