You cannot become your "true self" because you already are your true self. Get rid of the ego, and you have been there all along.
Get to know your higher self through meditation, and intuitive exercises. I also recommend you try to astral project, because your astral body is your higher self. It can take years for you to know yourself through and through, and the result is amazing :)
Look in the mirror. Really look at yourself. That is who you are, that is who your higher self is.