Help: Struggling with Wife's Pancreatic Cancer issues

Its been just over a year now that my wife and I started this fight with nonoperational Pancreatic cancer. We are now on a new chemo and I feel it's not working. She has lost close to 30lbs recently over the past couple months. She spends most days tired and very little energy. We have good days but by the time she starts feeling better it's time for another round of Chemo that knocks he down again. it's a vicious circle. We just got a CA-19-9 results and her numbers have risen and are close to 7000. At one time we had it down to 26 but that was in January and things have gotten much worse over the past few months. She has a lot of abdomen pain and back pain after eating very little and I have to stay on her to drink more so she doesn't get dehydrated. Recently we had a big talk and agreed that we have allowed the Cancer to take over our lives and that's all we were focusing on was the CANCER. We stopped being husband and wife and became too much caregiver and patient. We have recommitted ourselves to being that once again and we will put our love for one another first and deal with the cancer as best we can, never forsaking our love and commitment to one another. But we chose to love and be as happy as possible with the time we do have left together, wither it be days, week or 20yrs more. There is very little we can do other than trust that the Dr are doing what's best of her and trust 100% in God. I guess I just needed to talk to someone since I feel everyone including our own children and family have distant themselves from us in this fight. I've asks my sons to call their mother and check in on her knowing it would really cheer up her spirits but the calls a few and far apart. So, we continue on this journey together, hand in hand forsaken all others as we have done for many years facing life's challenges as a united couple, continuing to believe in one another and knowing everything is going to be alright. as long as we face them together. Thank you for your time and if you can share any words of wisdom or just want to help me with this struggle I'd appreciate it.

God Bless you all