Dad newly diagnosed with incurable bladder cancer

We've just found out today and we've never had anyone in the family with cancer in my adult life/recently.  I have no idea how to process it and I don't know what to make of what the consultant said.  Its like being totally numb and in disbelief.  I can't accept it at all.  I wanted some comfort from somewhere as I'm just worried overall about all the future implications about what my dad is going to miss and it gets more unbearable.