"...force yourself to be positive..."
I completely empathize with you. When I decided to think in positive, it was not a natural thing, nor something flawlessly born from within, instead... it was a burden, an artificial imposition, a painful kind-of non-acceptance of the circumstances I was living at the time.
An ironic smile, an elusive look, I didn't even believed my own thoughts, my own effort to find positivity within the hardest times I've ever lived. Amazingly, a few days after I've started this new habit, everything became brighter (: Finding good things daily became a normal situation, and suddenly my smile... that big, beautiful, childhood-forgotten smile was back.
I sincerely from all my heart call blessings, health, and recovery upon your wife's body. Blessings for your house, and your life.
- EvM