How I failed my parents...

Christmas is a few days away and the year is closing soon. We end the year as it began with Dad in the hospital. Mom feeling like all hope is lost. Dad not wanting to go on. How did I fail my parents? Not supporting enough? Not providing enough time for them? Not being able to solve all there problems and challenges? What can I say to either of them at this point? There's always hope? You'll get stronger and be home soon? I don't believe it myself. I've lost hope. I don't even hope anymore.