Let me explain a concept to you, /improve/.
There is a thing called Longevity Escape Velocity. To wit, at some point in the (hopefully near) future, life expectancies will increase faster than people age. More causes of age-related death will be cured; by the time you're old enough to suffer from a thing, that thing will have a treatment.
However- and this is the big however- it's not clear exactly what the longevity technologies of the future will involve or when they will be available.
You may live long enough to be able to improve yourself through direct means- assuming that you don't die due to unhealthy lifestyles first.
You're responsible for your own, potentially indefinite, lives, /improve/. Act like it!