My dog is dying

I am still in shock. I can’t breathe. She has not passed and still has a few days left. She has lung cancer. I wish i knew and got her help before. This is not fair. She is the best dog ever. She is so sweet and calm, loves belly rubs and sleeping. She loves eggs and fries. I don’t know how to function when she passes. I know she won’t be in pain much longer. But i love her so much. Luna i love you so much sweetness.