I don't write or post or whatever often because there things I want to forget. Memories that I share with other people that I know I should cherish but feel the need to forget. I choose to want to forget those things because you past makes you who you are, you don't have to live based on your past, but its what builds you to make you stronger.
There are some things you know for sure you will never forget, those are the secrets you will carry with you to your grave. You don't have to share these things but don't let them stop you from being who you want to be. Embrace who you are. (unless your some kind of serial ax murderer, then you have some issues and should get some serious help.)