You're probably going to live for several centuries. I know it's hard to believe but it's true.
The most likely reason you don't make it to triple digits given your age, gender, and the fact you're on 4chan, is suicide. It's actually how most anons die.
So don't do that and by the time you get sick from old people diseases we'll have cured them.
https://www.youtube.com/watch?v=QfDIfQM--AU 