First of all I'd like to say hi to everyone in this forum. I read a few things in here before deciding to finally post something.

Here's the story:

Four years ago my father has been diagnosed with a throat cancer (he had always been a heavy smoker) at the age of 80 years old. After a long and hard battle he managed to defeat the cancer with radioteraphy. Nothing was found after that however back in June this year the doctor diagnosed my father with an incurable lung cancer. They initially thought of chemo but after a few months they decided that it was not even worth it. About 2-3 months ago the doctors told us that he was already at stage 4 and he had a few months to live. 
Now everyday that passes I see my father condition getting worse. He's becoming forgetful, his body is weak and spends most of the time sleeping and his anxiety is another major concern. When he wakes up he is so confused and it breaks my heart seeing him like this and not being able to do a thing. Now every time I wake up I check on him to see if he's still with us cause I'm so scared that he will leave us anytime soon. I don't know what to do and I haven't told anyone besides a very few close friend of mine. I live with my mother and brother and ever since my father has been diagnosed with the second cancer, I spend the whole day at home with him but that's all I can do.