One idea I have seen suggested in the past would be to write each person a good-bye letter letting them know you're finally ready to let them go. Here's a link to an article, from PC's archives, that touches upon this subject:

The Importance of the Goodbye | Psychology of Women

You can also search, on the internet, the topic of writing a letter to say goodbye & find some helpful guidance. Here's a link to one such website I found:

How to Write a Goodbye Letter to Someone You Care About ⋆ Life Blossoms