Very sorry to hear the news. I echo what everyone has said - her determination will be a positive factor in her recovery, as will the love and support of family and friends. One of the worst things that people go through in this situation is the feeling of powerlessness to make things right. As you say, it's in the hands of the doctors and higher power(s). So I encourage you to continue to do what you can in the areas that you can, like emotional support, helping tend to family matters/duties, etc. This will help you take control over some of the emotions and help you keep a healthy perspective.
Sounds like you are doing all of this, so just keep it up.
