Teenage Fashion Advice and Styles Needed!!!!!!!?

Im going into 9th grade next year and I need some fashion help. Im a big tom-boy and I need some help with fashion. Im in middle school and we have a dress code that's just Polo's and khaki pants. When I go into high school i want to be fashionable. I love sports and hunting so ive got a lot of boyish clothing. What are some cool teenage fashion styles and style choices. Right now im happy to wear jeans boots and a Dixie Outfitters tshirt. I need everything from shoes to hair styles and jewelry. Speaking of which where can I buy things like the long necklaces. Thank You!!! =)