Hey man welcome aboard!!!
And don't worry about the fact of being nervous. We all was in the same shoes as you. When you start feeling nervous start saying to yourself. Self I'm gonna look so good when I get this done. And the most important thing is how much better you'll feel as the weight goes away.
July 1st is wednesday and thursday will be the begining of a whole new you. So good luck and ask away on any question you'll have..
Oh and a good tip for ya. Who ever goes to visit you after the surgery is completed make sure they bring you chapstick. Trust me you'll thank me for it..
Good Luck!!!