Even though these tips and tricks are divided into categories, there are actually no real divisions. When you go to an exercise class, you get support from the other class members and improve your cognition. When you meditate, you gain calmness and increase your focus. When you go to a support group, you acquire important and relevant medical information about your illness. And so on.
If I had to limit myself to one sentence of advice, I’d be hard-pressed. But here goes: pay close, moment-to-moment nonjudgmental attention to what’s happening in you and around you, get and stay healthy, get support, claim your strengths without obsessing about what you perceive as your failings, and be grateful and peaceful whenever you can manage it.
I highly encourage you to seek out people to support you in the process, people who have gone through what you’re going through—their advice and support is invaluable. If you’re ill, and your illness is so obscure or rare that you can’t find other survivors locally, use the Internet to locate others—just about every disease has its own community. That’s how you’re going to find the right treatments and right doctors—and the good doctors get better results.