reinvention for the sake of reinvention is silly. I'm sure you're a cool person as is, and change and growth are good, but you shouldn't throw the baby out with the bathwater and just randomize a new set of hobbies and personality traits and whole vibe...
figure out what values you're committed to, figure out what you like about yourself, figure out what traits you value in others... explore, meet people, learn from their perspectives, keep an open mind, try new things. Explore art in different media--it doesn't have to be fine portraits and sculptures... sometimes you just go from being a TV person to being a movie person and movies start to give you new perspectives.
but don't just pick up personality traits ad-hoc. keep a focus on who you want to be and stay directed towards that goal. explore, but don't get distracted, don't get lost.