Nicki,
I am so sorry to hear about your father. Losing a parent is devastating, no matter what age. I lost my mom to this dreadful disease less than 3 months ago so I know what you're feeling right now. I can relate to your feelings of having trouble with the fact that he lost the battle no matter how hard or long he fought. It is a horrible feeling, not only of loss but of defeat. Please continue to come here for support. Some days for me are harder than others, but coming here often helps as it is a community that understands like no other.
Please accept my sincere condolences. I will be thinking of you and your family as you work your way through this sadness.
Amy