If you had a chronic condition and you knew

if you had a chronic heart condition for 11 years Nd knew you needed a heart transplant to survive and you were mid 30 year old would you find that extremely unfair? or would you crack on and do the best even though its harto even breathe. its hard to keep positive.. the amount of tolerance and adaptability the human body has amazes me. i have 70/50 blood pressure.. technically i should be passed out. peace all god bless