IAAM,
You are a stronger and braver than you know. You will get through this!
I am glad that you have a definitive date now...this will go a long way in helping you to feel there is a just a period of waiting to get through...then you are on your way to recovery, healing and getting back to your routine as you are accustomed to.
Asking your doctor for a pre-surgery rescue med prescript
ion to keep you calm may be in order. They understand, and will want you to be as comfortable as possible.
Keep us updated so we can be sending positive thoughts and prayers your way.
(((Hugs)))
S.C.