prayers please

Well my mom hasn't been feeling good since i'd say about December, she can't eat ,can't sleep constiantly coughing no energy she's dropped about 50 lbs she went from looking her age 61 to looking like an old fragile 81 year old women. Well they did a chest xray found a spot on her lung they couldn't tell what it was so they did a ct scan, still couldn't tell so last Thursday they did a biopsy well yesterday results came back and its cancer! Im so scared I hear the word cancer I automatically think death. I dont know what to do,how to be, what to say! We dont even know what stage it is or if they caught it early enough until she sees the oncologists. Im lost and scared my head hurts from crying so much.