According to evolutionary psychology, you would have been yourself no matter what. For example, Steven Pinker sustains in The Blank Slate that the influence of parenting on personality, IQ and other more specific traits is pretty much negligible (as long as you have "reasonable" parents). Variance in those traits is 40-50% heritable, 50% due to factors outside the control of parenting (accidents, diseases, peer groups, randomness during development) and 0-10% due to parenting.<p>This sounds very counterintuitive to many people because it's not the way we would like it to be. Many studies of adopted siblings, twins separated at birth, and natural siblings who grew up in different families support this hypothesis.