Great advice from everyone here - just want to add 2 things that my onc nurse told me before my very first treatment:
#1: Although you will feel like you're spending all your time in your docs office, go in, get your treatments, then GO OUT AND LIVE YOUR LIFE.
#2: Learn how to say THANK YOU for the help that people offer. This was HUGE for me as I hate asking for help and have no family nearby. I had to rely on friends and learning to say thank you was one of the hardest things to do.
Other than that, you'll both be fine. And as Jen said, a couple of years from now, you'll go "did I REALLY do all that surgery/chemo/radiation/more surgery". It will become a distant memory, kinda like childbirth
Good luck,
Jen