My Dad was diagnosed years ago on the same day as his birthday, and the day he retired. It was said to be an easy one to get over, it wasn't. The first try failed, the second failed, however, the third one smashed it, sorted him right out. Essentially, he was given an immune system transplant.
When it was all over, and he was clear, he told me at no point did he lose hope, he always thought they would fix it. I've met many people succeed with that mentality, sadly, the ones that don't, don't tend to make it.
Keep strong, love you wife and family, never show doubt. Keep her spirits up, and you can pass your success story to others in a year or two.