I can't grow up

They've been asking me my whole life what I want to be when I grow up After 20 years, I still have no clue, But I know what I want to be like, and who, I wanna be brave like Louis and Clark, Convicted like Rosa Parks, Have a vision and a dream like Dr. King, I want to give like Mother Theresa, be known for smiles like Mona Lisa, Be fiercely in love like Shakespeare I don't know what kind of job I want or where I want to be in five years, But I know living small is one of my greatest fears.