When I have clients who think their health problems cannot be overcome, I always tell them to find someone who has overcome that issue and use them as an example that it can be done.
That is the great thing with technology. There is probably someone out there who overcame the same or very similar circumstances and shared their story via the interwebs. Find them, find out what they did. Commit to follow their path of healing.
Your path will be very different in many ways, but knowing that someone else has been there is the hope that most people need to stay committed to their journey.