Complex sentence: She started her channel on January 26,2013 and has since gained over 3 million subscribers on her YouTube channel where she does make up tutorials, make up reviews and talks about her life amongst other beauty-related things.
Split into simpler sentences: She started her channel on January 26,2013 and has since gained over 3 million subscribers. She posts make up tutorials, reviews, and talks about her life amongst other beauty-related things.