Revelations come when you're in the thick of it, pitting yourself up against something larger than yourself.
I look for a role that hopefully I feel empathy with and that I can understand and love, but also that has that challenge for me to play - a different kind of role, a different type of character, a different time period.
Once I got to high school and auditioned for a play and got in, I thought this was really what I was looking for. Once that had got cleared up, from 13 on, that was it.