Dad has weeks to live

Not really sure where I start, Usually a strong person. I've lost family, friends my first baby  my dog, but this has hit hard. To be told my Dad has a few weeks left at the age of 63 is heart breaking. 8 grandkids who are hurting. Life is so cruel. Cirrhosis of the liver due to Drinking, and a really bad spell with his mental health. Several suicide attempts(more a cry for help)...He did drink to much but it wasn't all his life 10-12 years.. he'd drank most day, still worked, never drunk  before  work but when he was home he would have can..before that he drove a taxi for years so only drank on a Sunday as I grew up. He stopped drinking after he had a holiday with friends drunk way to much and he was hospitalised on his return. He was diagnosed with Alcoholic Hepatitis and told if he drank again it would kill him, thats was  September 2023 he gave uup straight away. Within 6 month he was diagnosed with Liver Cancer. The word know one wants to hear..... due to his liver function he couldn't have treatment straight away,  he needed to try strengthen his liver or he would possibly die of liver failure.. regularly 2 wweekly blood test showed his levels were going up rather than down.  This indicated either more tumours or a more aggressive form or Cancer. We are now at the stage over a matter of 2 months it has spread to his main vein. Nothing can be done, he is being so strong but its like a ticking time bomb,  every minute of the day is hard for him and us, I feel helpless. Christmas is around the corner and he wants to see his grandkids at Christmas he has said, don't think he will be here by then, which is heartbreaking. Really am struggling