If you know that life is basically going to be horrendously difficult at best and all but unlivable at worst or possibly even unlivable do you go on? And the choice to go on is the only thing that I think can be called hope. Because if hope isn't forced to encounter the worst possibility then it's a lie.
First I want to pay tribute to Diana myself. She was an exceptional and gifted human being. In good times and bad she never lost her capacity to smile and laugh nor to inspire others with her warmth and kindness. I admired and respected her - for her energy and commitment to others and especially for her devotion to her two boys.