Have you talked to any of the "better" relatives in your family that might be around from when you were really young? My aunt was around when my family went through heavy turmoil which is why I was in therapy and she was able to tell me stories about myself from when I was 1-3 or 4 and that was really really helpful. It gave me "back" myself. I could identify with her stories and knew they were "me" and then I began to think about and remember things from when I was 4-6 or 8 or so and what they "said" about me given my now adult self.

In short, start from within you instead of looking at things outside you now. Who you are/have always been is inside you rather than something you will find laying around :-) out in the world. Let the world come to you, you don't need to go to it. You are the prime mover in your own world.

If you don't have grandparents or aunts, uncles, older siblings, good friends of the family, etc. then just start listing some of your day-to-day memories from as young as you can. My mother died when I was a toddler and my father remarried and my stepmother's taste was a lot different from my mother's and I preferred my mother's! I didn't figure this out until I was in my 40's and realized that I preferred my uncle's house to my own (my stepmother's). When I analyzed it I saw that it was the "coziness" of worn rugs and wood, delapidated :-) furniture that I liked (my stepmother was all European) antiques, standard split-level house with "normal" rooms -- my uncle was always building additions and adding features, etc. his old houses were always under construction of some kind and all had odd little nooks and cranies, etc. which children love) and looking at pictures from when I was 2 and 3, our house had the same "style" that my uncle and aunt maintained. Get some photographs from your childhood and analyze how you look, try to remember what you were doing, what you felt, etc.