Hi Rachael,
Best place to come & vent frustrations about this whole horrible journey. I know exactly what you mean about breast cancer taking over your mind. I had a rant about that very same thing a few weeks ago.
According to a lot of women on here it will get easier, but when nobody can tell you. Just hang in there & know that even at times you feel alone on here you never will be & you can express however you feel & not be judged by anyone.
I too am scheduled for my last chemo on the 29th of nov. then radiation, herceptin till sept 2014 & also tamoxifen, all at Peter Mac.
All I can say is stay strong, be kind to yourself & vent when you need.
Take care Carolyn x