This isn't a death sentence. It will change your life completely if you can't shake it but it won't necessarily destroy it. You have a good chance of a "cure" if it's caught in the first two years. Some people are cured by the very first block. Don't get your hopes too high but there are several techniques they can try to put this in remission. You have early diagnosis on your side.

It's even possible that the tests will turn up something more benign. Keep hoping.

If it does get cured you have to be very careful since it can come back easily.

Good luck.