I love this next exercise. This particular exercise takes a bit of time to do and is a perfect exercise for the end of the day. You don't have to share the whole letter with us but maybe you could just give a couple highlights....in particular the advice you would give yourself.
Write a letter to your current self from your future self, 5 years down the line. What advice would your future self give you? What dreams have you achieved, and how did you do it?