Is there a gatekeeper among your personalities? One that governs all of the others in some ways and makes sure that everything runs smoothly most of the time?
Gatekeepers do more than just keep the peace.
Here is a section from a description of internal personality types
described on a DID Research site.

Gatekeeper: A gatekeeper is an alter who controls switching or access to front, access to inside or certain areas inside, or access to certain alters or memories. The existence of a gatekeeper is highly stabilizing for a system because gatekeepers can to some extent prevent unwanted switching, failure to switch when necessary, or failure to switch to the correct alter. They can help to prevent traumatic memories from bleeding from the alters who hold them to alters who could not yet handle them. They might police the boundaries between subsystems. Because gatekeepers have control over which alters have access to front, they themselves are often or always near front and so witness everything that happens to the system. They might experience vast amounts of abuse and might present as ageless, emotionless, and nonhuman as a way to process this and cope. Gatekeepers may or may not also serve as an internal self helper.


Here is the link to the page...
http://did-research.org/did/alters/functions.html