well..guys ..old and young..generally like smaller/shorter girls..ATLEAST shorter than them..so yes 5'7 is DEF very tall for a teenager//msot guys are around 5'7-5'10..even past puberty..so yeah id say your on the taller side sweety..but don't worry..you can still get taller guys than you..
A lot of teenage boys don't hit their final growth spurts until they are in their late teens or early twenties. Yes, most boys prefer girls that are shorter than them at that age. It can be a bit intimidating to talk to a girl who towers over you, not to mention talking with a girl period. I'd recommend focusing on guys that are older, who tend to be taller. Those would your best chance for success.
Personally, I'm about 5'3" and I've dated guys of every height range. My taller friends only date guys taller than them...so guys will definitely like a girl who's tall...otherwise none of them would have found boyfriends. It's just easier for shorter girls because there's a bigger pool to choose from I guess because from what I've noticed, most tall girls I'm friends with wouldn't date shorter guys and so shorter guys were intimidated about asking out the taller girls..