Jen,
I agree with what Gary is telling you. Before you embark on this unknown journey, get the loose ends tied up. For example, we found out that although we are married, because the house deed and mortgage was in my name solely, if anything happened to me, my wife would not necessarily get to stay in the house. This was a shocker and before I started treatment, we refinanced the house, updated my will, power of attorney, advanced directives, etc. I also found out that a copy of your advanced directives are supposed to be kept in the glove compartment of your car in case you are in a car wreck. With all the legal stuff done, it was just one less thing to worry about plus it gives you the opportunity to discuss some of the issues we tend to wait until it is too late to discuss.
Kudos to you for all you are thinking about right now!
Ed