13 y/o tomboy in desperate need of some tips before she starts middle school in a month.!?

as i said im 13... a girl, considered emo or tomboy... i dont like being called emo. I live with my Gammy and Pappy in Mesa. I most likley will be starting middle school at my old school Sequoia. This is my first year of middle school. Im stoked cuz no mas uniforms :D Im growing out my hair and dying it grean/black or red. Im going shopping this month for school supplies. dont know where to shop. also dont have any ideas for hair, items, outfit, and accesories... I need help with my way to get there. I live like 10 blocks away from my school but i just go straight. Skate board.? bus.? gammys old van.? or walking.? also anything i should know, like locker rooms and shizz... so to sum it up: perfect outfit, place to shop, ride, and tip i should know for middle school in a month.?! it'd be stellar if i got some rad answers.! :D