Amanda .....
So glad you have a date!! Hopefully that will help you to focus now a little more. The unknown is what always gets me. Now you can make concrete plans. Try to just think about making sure all arrangements are made for afterwards and then relax and enjoy your family and do fun things ..... whatever is a great distraction.
I, as well, can empathize with you (I will PM you because I do not want to take away from this thread) in many, many ways ..... but especially since I, also, am a singer and a pianist/organist and I was so sad at the thought of losing my one side hearing. Following my first surgery in February, 2008 I retained approximately 20% of my hearing and use a hearing aid. It has been an adjustment, but I have still been able to sing in two choral groups and do occasional accompanying. (I had actually retired from full-time work before the diagnosis of the AN.) With singing, it is a matter of your brain learning the new input of sound and I think you will be able to do that, but it may take some time. If you sing in choral groups, the biggest issue is your placement in the group, since the input of sound will only be from one side. In my case, it has been manageable and I am still able to sing. My bigger issue is one of balance, which does not affect my singing, of course.
More on this, but I am very curious to hear more from singers who have a BAHA (bone anchored hearing assist) ..... this is something for you to consider, as well.
Many thoughts and prayers as you prepare for surgery.
Clarice