Ooh, okay, AmandaLouise's post makes clear the distinction between compartmentalization and detachment (for me)...

Compartmentalization is keeping every thing separate from all the other things. Not putting them together.

We have made a timeline, which we work on from time to time in therapy. It has all the things written down, so has everything in one place at one time.

Detachment is looking at it and not "getting" at some fundamental level that any of that happened to you.