I know how you feel about your son. When I was first diagnosed, my biggest fear was not being there for my daughter—she was 8 years old at the time and is now 10.
I wrote that fear in my journal and asked myself: What information do I actually have right now that makes me think this will be the outcome? The statistics are encouraging, and they keep improving—better treatments, better medications, and better ways to manage the side effects of chemotherapy.
Try not to let your mind go to the worst-case scenario. Stay grounded in the facts you have and take things one step at a time. A good therapist who can help you put things into perspective might also be very helpful.
I wish you all the best. While you’re waiting for your appointment with the oncologist, focus on strengthening your body: good nutrition, any kind of exercise you’re able to do, and good sleep.