Write a letter
Someone is having the week you already had.
Write to the person reading it, not about yourself. They are in the middle of something you have come out the other side of.
Specific beats general. One real thing you learned lands harder than a page of encouragement.
It is okay if it is short.
A person reads every letter before it goes up. Your first name and your relationship to the person you cared for are published. Nothing else is.