Like da man says .. 'translate this' !
"I want to become what I am."
я хочу стать , .... , errr что я ем !? шутка
And in case you think that's nonsensical, so there's no need for a translation, don't forget the bible "I am that I am" .. or if you're not religious, try Gloria Gaynor "I am what I am, and what I am, needs no excuses, I deal my own deck, sometimes ..... oops got carried away there