I've got me, the agent, and me, the autopilot going on. The autopilot unconsciously slides into control in day to day life and executes all these routines while my conscious mind (the agent, me) is in this pseudo trance thing aware of reality but not really bothering to do anything about it. Taking command back from the autopilot's a really hard thing to do, not because it's necessarily difficult or anything but because I have to consciously put myself in control.
Then, after various highly stressful times in my life, I've had a feeling of separation from my earlier self, and while I retain the memories, they feel as if not my own (because I've repressed what made those times uncomfortable); my agoraphobic self being a good example.