Something popped up in my e-mail on May 15th which I had completely forgotten about. There's this website called Futureme.org which allows one to write something to one's future self. I found out about this in May, 2014, and decided right then to try it out. I set the timer, so to speak, at three years...here's what I wrote [with updates]: I highly recommend this site, I had a blast reading it!
Thats a great website! Another approach is to simply go on EC and do a search for old posts and see what you wrote early on to how you view the world today. Very informative as well!