You can't try to be somebody you're not; that's not style. If someone says, 'Buy this - you'll be stylish,' you won't be stylish because you won't be you. You have to learn who you are first, and that's painful.
I don't like to try very hard. Most of the time it's just jeans, a T-shirt and Converse trainers. Casual, comfortable and boyish is how I'd describe my look. The way people wear clothes makes them stylish, rather than the clothes themselves.
I grew up idolizing Madeline Kahn and Lily Tomlin and Carol Burnett, Ruth Gordon, Rosalind Russell, Amy Irving, women who were stylish and real actresses who did real work and could not be replaced with anyone else. You cannot cast anyone else in Madeline Kahn's roles.
There are people who believe that a Dolce & Gabbana T-shirt is more stylish than a supermarket one, and there are people who believe the opposite. There is room for everyone.