What age were you when you became conscious of yourself

Not sure what you mean by self-aware, and from the variety of responses you are getting there clearly is no consensus on definition either. If you mean earliest memory, about 4. If you mean that I was somewhat unique, more like 10 when I was bedridden for several years. If you mean truly cognizant of my limitations, 18 when, as a part of a foolish adolescent prank, I was thrown into a swimming pool, learned I couldn't learn to swim on the spur of the moment, and nearly drowned. A great lesson in one's own mortality and limitations.