I never use (not even in my head) plural in reference to myself as a person. When I talk or write like that, it is when I communicate with an audience that I know shares the issues that we are discussing (e.g. quite often in my addiction recovery circles) or when I feel that making generalizations is well-founded, but not as a reference to self. I never felt my ego or sense of self fragmented, I actually tried to apply psychological concepts that work in that way (there is one technique for addicts trying to quit their habit, for example) but they don't work for me. Just don't feel it and so don't find it useful personally. I do feel more mature in some aspects than in others, but that's pretty much about it, still experience all that as the same one person.

What I do experience quite vividly, especially when younger, are seemingly opposing motives and forces within. Many layers of duality. One version from my youth was more or less equally strong drives for intellectual/spiritual pursuits and more earthly, hedonistic desires. I no longer experience those as conflicting or divided but was a strong trend in my adolescence and young adulthood. Then another one is part of my consciousness viewing myself, my desires and actions in a detached, very analytical way, so that I can easily look at my personality and motives as if they were someone else's. This is of course handy in psychotherapy, and of course the more analytical perception and consciousness developed later in my life (but still quite early, I recall thinking like that as a young teen). Another one is a dual motive for wanting to be fiercely independent but also craving closeness and intimacy with select people. I do not feel that any of these are related to traumatic experiences for me, more just different motives and layers in the same person and self, not isolated from one-another but sometimes causing internal conflicts.