We have a lot of resources here at bpdfamily. Some are in the "Learning Center" here:
https://bpdfamily.com/message_board/index.php?action=collapse;c=6;sa=expand#6. Some are the feature articles on the individual boards. The Leaving board has the 10 beliefs, The 5 stages of detachment and the Grief workshops... .
1) Belief that this person holds the key to your happiness... . there are 9 more of these
Poll: The Five Stages of Abandonment - Susan Anderson, MSWThe Grief Process - Denial... . there are 4 more of these, one for each stage
One of the most helpful resources I found here was the workshop on Boundaries available here:
https://bpdfamily.com/content/values-and-boundaries Sometimes people don't know what bpdfamily has as far as resources, so share which resources you found helpful.
Please include the link and a little blurb as to why it helped.