One thing you can do for yourself right now, is to cut out most of your salt intake. Any doctor is going to tell you to do the same thing, so why not start early?
Being 20, I doubt you do much cooking for yourself. But try not adding any extra salt to anything you eat. And when you get a chance, request that your food be prepared without salt.
I can guarantee that your food is going to taste very bland for awhile, until you get used to it. But once you have, your food is going to taste better than you have ever had it. It is well worth training your taste buds
to do without salt.