Got a haircut before prom senior year, didn't have another until February of sophomore year at KSU. Kind of mixed reviews, at first it was awkward emo-style(which you may like), but then it got to the stage of girls saying "wow you have hot long hair, I want to grab", unfortunately it turned into "omg eww a hippie" at the end. Donated it to locks of love, so some good came of it.
I mostly did it because I was too poor to spend money on haircuts. It takes good hair genes to grow it properly, so consider that