I am sending positive thoughts to you and your family. Depending on your community there may be a support group for children/teens who have someone in the family who is seriously ill. I have known several young people who have used this. It provides a safe place to vent( there is an adult counselor present) with others who understand and get the emotions. She also doesn't want to burdon or worry you. Unfortunately she is going to be a member of another unique group. This may also get you in contact with other parents facing this issue and how they are coping. Meanwhile enjoy each and every moment as we all should.