A message from you to someone turning 20

STORY

I'm 26 years old and haven't been feeling well lately. Even though I'm still young, I get scared every day when I see the results of my health checkup.
You are now 20 years old, the age when you can finally join the ranks of adults.
Since we are older than each other, I wanted to do everything I could to help my younger sister and doted on her.
For your sake, I want you to be fully independent and do what you want to do now, even if it's risky.
Because youth is worth as much as billions.
You have glowing skin and a bright smile, because they are gifts you can only have now, no matter what you do.
Don't miss out on the moment and live your life the way you are.