It’s your life and choice. I have had loved ones and family who have had cancer, some chose full treatment, some palliative treatment to improve quality of life without aiming for cure, and some chose no treatment. My mother is going for partial treatment, and I understand her decision and accept it, my Nana chose no treatment for melanoma and passed from other causes before it consumed her, my godmother chose full treatment for bowel cancer and still died from it, my peer died at 17 from bone and lung cancer and only had palliative chemo. I guess my point is are you comfortable with your decision? It’s your body and your life, and choosing any or no treatment is your choice and isn’t selfish regardless of that choice. I know in certain circumstances I’d choose no treatment or partial treatment, despite having a child I love dearly who has basically no other blood family.
Are you comfortable that your decision feels true to yourself? Would it be helpful discussing your decision and options with a counsellor? If happy with your decision, would you prefer support in helping you share that decision with loved ones?
It’s not selfish to do what you feel is best for you, in fact as hard as it can be it’s actually a good thing. Hth 🌺