a, stand out. If hoodies is what you really feel comfortable in, you don't have to change it, but try something crazy-sexy-cool to go along with it and make yourself more apealing and not just cute. You see wayfarers are awesome, but practically EVERYONE has a pair. The look loses its WOW factor. You can look cuter with a crazy head band with a white/pink/black hoodie and matching bright pink pumps lets say. You can wear a studded jacketlike hoodie, very common from H&M and wear it with high strap heels and layer it well with a cool looking shirt. Also experiment with cargo pants and bell bottoms. Sometimes they actually make you look amazing when paired with a hoodie. Even a matching nail polish or lipstick to your hoodie does wonders.
b, change the entire look. Find an alternative. That Miley Cyrus Fly on the wall long vest