Two years ago I used this website to write a letter to my future self. When I went home after seeing the new Star Wars movie, my brother sent me a link through g-mail and I saw right next to it that the website sent me the letter from two years ago and it all came back to me. A lot came back to me, since that year is like a blur to me now, so this was very helpful for remembering. I don't know how popular that website is, but I've decided to do it again this year. The next one will be on December 25, 2018. It's pretty interesting doing this, you may me completely different in two years, or the exact same person. Maybe this is more popular than I think it is, or maybe it is very old, but try it out, maybe you'll see your past self very differently like I did.