sailorjoe,
You have been through so much, and the compassion you have shown for your wife during her cancer is so admirable.
I hope you find you can vent here and even take a step back to figure out how to clear your head so you can accurately move forward in your life.
I have no doubt you are tired, exhausted really. Please do show your self the same kindness and compassion you have shown your family all these years.
Peace,
SB