Im ashamed of my sister.. do u think people look at me the same?

im care way to much what others think.. my sister was a slut/druggie in her teenage years, and me being her sister im afraid people will portray me as being the same, when im not, ive never done anything bad in my life, never smoked done drugs or anything. im the complete opposite of her. Do you think me being related to her.... people would think im the same?