Im a girl but i look like a guy!?

im a 17 yr old girl but i matured late so i look around 14/15 and iv never really had any interest in fashion but now id really like to start looking better since iv always worn what i find comfortable such as guys jeans and loose hoodies. i dont have any knowledge of fashion whatsoever and i have only guy friends so no help there. so if anyone can give me some tips for hair, and clothing/ outfit planning for a casual look thatd be great also i do alot of random stuff with my guy friends like free running and climbing so it would need to be fairly practical. if u could include links id be very greatfull, thanks for taking the time to answer