@Birdman Oh, my friend...I'm so sorry to hear that. It must be a nightmare for you and your family, I'm so sorry...I'll pray hard, from across the world, for your mom. I genuinely want to give you a hug. I'll keep thinking of you, I'm sending you all my best wishes, so please take care of yourself too, and stay with people who will support and take care of you while you walk through this.
It's hard, and especially so when there's nothing that can be done. So, spend the most time with your mom, tell her how much you love her, hold her, talk to her, and make the best of the time you have left. Cry as much as you need, too.
No matter what happens, you'll never lose your mom, as long as you think of her, when you're at your worst, and in the best times of your life, your mom's love will surround you ; she will never leave you alone.
Share your pain with your family, I'm sure they're feeling like you are. Be there for eachother in such times, that'll help you carry on.
You're not alone, and it will be okay. It's not going to be easy, but it will be okay one day. Take deep breaths to try to calm down if you feel like you're drowning in anxiety, sadness and despair ; you can also sleep a bit or take a shower, it might help.
You have my entire support and I send you all my strength.