Yes that's basically how I feel with DPD (which I think most if not all do) and it sucks. What I've been doing is taking time to smell the roses. Seriously, find something and just look at it. Look at the shape, notice how its real, the colors, and any way it might relate to your past. I randomly did it with a Wendy's sign (no idea why lol) and I felt this change of emotion and my heart raced and I felt real again for that moment! Just take time to notice things around you.