Here is a new (digital) version of an old tradition that I have seen/heard many people do. Writing something to your future self.
This can be a highly reflective and deep process!
What you do is you visit this website: https://www.futureme.org/
Write a message to yourself, set a date, email address and press send! Voila.
You will most likely forget about it until you receive the mail. What a lovely surprise 🙂