Please Keep My Mother in Your Dua's - Seeking Honest Advice

As-salaam alaikum brothers and sisters. I know this space is for sisters but I hope you won’t mind a brother asking for help - if it’s a problem please delete, Jazakallah khair. I need honest opinions. My mother has been diagnosed with stage 4 triple-negative metastatic cancer. She was on chemotherapy but they stopped it because it wasn’t helping. The doctors have said she may not make it to Christmas. This situation has pushed me closer to Allah (SWT); I’ve been asking in every prayer for shifa for my mother and I’ve cried in tahajjud pleading for her recovery (Alhamdulillah for the chance to make dua). I’m struggling between hope and reality and I need blunt honesty. Am I being delusional for still asking Allah (SWT) for a miracle and healing, or am I right to keep believing that He can cure her? Her cancer has spread to her neck, one leg, a kidney, lungs and spine. I know it’s unlikely, but I feel certain Allah (SWT) can accept my duas and grant shifa. Meanwhile, other family members are already talking like they’ve accepted her death, and that makes me doubt myself. We’ve experienced a miracle in our family before. Many years ago, after my brother passed away my mother was devastated and was told she couldn’t have children anymore. Out of pain she made many duas, and then her brother was blessed with a son, and a year later I was born. She calls me her “miracle baby.” That memory keeps me praying for another miracle now. Please be honest: am I being unrealistic, or is there still a chance she could overcome this without active treatment right now? I’m asking because I truly want to know how others see this situation. Please include my mother in your duas. Jazakallah khair for any honesty and for remembering her in your prayers.