I think I am only the person on here to guess INFJ.
I have seen her in a few interviews, most notably Barbara Walter's 20 Most Fascinating People and on Oprah. She is quite soft spoken and talks about how she felt like a freak growing up and her greater mission is to help young people learn to be OK with embracing their true self. She also said she is perfectionistic.
Soft spoken, idealistic, creative and perfectionistic leads me to INFJ...maybe INFP.
"Be who you are and say what you feel because those who mind don't matter and those who matter don't mind. " - Dr. Seuss
I can't spell...get over it