You are not defined by your illness, you are defined by Christ
Turn your focus from your problems and on to God. Worship Him whether things are good or whether they are bad
Coming to the realization that God knows best can either come easy to you or with hardship–for me it came down hard. When I was a lukewarm Christian, I was stuck in the habit of thinking that I had to know everything and plan out every event in my life by a certain age, date or time. I had to be in control of everything in my life and thank God afterwards, if at all. This stubbornness and controlling behavior took root within me and led to me relying on my own works to puff up my ego and either make God an after thought or not a thought at all.