re: father has cancer and it's spreading all over.

Best advice I can give is to swallow your pain, frustration, fear and anger and stay as positive as possible for him. It's the worst feeling knowing there is nothing you can do (firsthand experience here), but strength and understanding are some things that could mean everything. Don't leave anything unsaid. If he wants to talk, talk (no matter how inconvenient it may be at that moment). And above all, don't miss an opportunity to tell him you love him. So sorry for your troubles...hopefully everything works out.