Hi Nicole,
I can so relate to how you are feeling as I was just like that when I finished radiation. I came home after 7 weeks away and everyone wanted to throw a party and celebrate and I was falling in a bit of a heap that nobody could understand. Anyway with the help of some phone councelling from a cancer council psychologist I manged to get through. She taught me a lot about living in the now and really appreciating little things and being kind to myself. One of the things I found really helped was after the kids went to school I would pick up a coffee and throw a deck chair in the boot and drive to the beach(a park will do if you don't live near the beach). I would sit under a tree and sip my coffee and read my book. I still do this from time to time if I feel a bit low. It feels like I'm playing hooky from life. An hour of that and I am feeling much better. Be kind to yourself.
Paula x