It is terribly hard waiting. I kept busy doing research on headgear as I knew I was having chemo. I went to the dentist for full clean and check and then religiously kept it up through treatment. You could get some cooking done to make life a bit easier. All these things can help.
Do you have a breast care nurse? . There should be one attached to where you see your surgeon. They might be able to give you some support pre surgery also.
Any questions that pop in your head...ask away. No question is dumb.
Kath x