Terminal lung cancer

The honest answer on how to cope with this cruel disease is that you just do. I've been in your shoes and had those thoughts of not being able to cope with it but eventually I did. I tried to focus on just making this day the best as I can and not focus on the long term progression of the disease. I learned to ask others for help or when others offered, to accept it. Bringing us a simple meal so that we didn't have to spend time away from our loved one shopping for groceries and preparing it gave us countless hours of time together that we used to make lasting memories. 

My mother passed away 11 months ago and I'm still not sure how I coped. In ways, I'm still coping with her absence. 

I don't think  you ever get used to it, you just accept it and in your mind they are still there.  My mum is with me everyday.