So... 'Who am I really?' is partly answered by 'What kind of a person do I want to be?' To think about... What it is that you value. Lets say that what you most want is to be... A kind person. Then think about what kindness means to you... What sorts of things do you think it is that kind people do... Then do them. Or... If you are having trouble 'being authentic' (doing what you believe to be good for yourself) then to figure out why / what is stopping you.

At least... This is what self discovery / self improvement / authenticity means to me.