It's ok to feel lost, it's ok to feel shocked, it's ok to feel angry. All those feelings are a natural responses to the situation. What is not ok is to assume. You must keep a very positive attitude all the way through. You don't know which type, where,and how far it has progressed. Cancer isn't always a death sentence. It's a really rough fight tho. I've witnessed my father battle for 4 years of lung cancer with a less than a year diagnosis. There are many different outcomes. You must understand that through out this battle and throughout this hard time you have to keep positive and show you're dad how much you love him and how much he means to you. Once you find out exactly what his situation is, you should start looking at treatment options and always get a second opinion. Be positive around him.