You've heard this before, but this might be a good time and place for a re-run...
This past January when our niece found out that her 6 year old daughter, Ashley, had leukemia, people said all kinds of things to her to help her feel a little better. She heard all of the platitudes. And she said the best words she heard were, "Feel it all. Get mad - kick a pop can all over the house. Cry. Shut the bathroom door, let water run in the tub and down the drain, and cry as loudly as you feel you need to. Laugh. It's okay to still find humor in everyday situations, and even at the medical stuff. Above all, hug. Hug whatever you have to, whatever's close, even if it's a cast iron skillet." I would offer the same words to you.
What you are looking at is not a disease or a condition - it's just going to become part of a new normal. Bits of it will be better, bits will be harder, and some bits will just plain stink. But rather than focusing on the cancer, focus on that new normal. You are settling into a new place, you have a wonderful little boy who looks up to you, and you have lots of friends - probably many more than you even know. You focus on what you need to - we'll handle the prayers, the cheering up, the encouragement. The Good Lord and all of us, well, we've got your back!