You can't really answer the question 'how would you deal with it' unless you have it yourself. I always get I don't know how you cope or deal with the problems I have but that's a normal reaction, but in real terms you just do I suppose. Long term sickness becomes part of your everyday life whether you like it or not and in the end you have to adapt to it and accept it.
The one thing I wouldn't do though is to ask anyone 'how would you cope with what I have' because it is a pointless question. Everyone deals with things differently on their own terms and in their own ways.
Although I am sorry to hear about your illness, keep your chin up (no pun intended).