There is a journaling technique called Unsent Letters. Rather than using your email account try just creating a word document. The technique is often used in therapy CSA and Grief/Loss. Just because you write a letter does not mean that you need to send it. I even write letters to myself. Using my computer to write the letters just helps me see things differently from when I write in my journal. My thought process is just different.

Sorry that you sent the email and hope that you will find another outlet to use next time