Look, if you are diagnosed with this (as I was told by my doctor you trust) before the age of 18, have a life expectancy excellent! But, if unfortunately, they do it from 18... I am very sorry, but they are few.
You see, from the mayorío of age, the body stops growing and, therefore, the heart already know how much blood sent to the body... so, I would send more, and receive more. Thing that would that you can get on colorado (purple), you asfixies and die.
But, as you are not of legal age, your body continues to in development, and the heart does not know how much is the maximum amount of blood is necessary; that is a big advantage.