Hi Kyyle, first, congrats for getting over the first hurdle and good luck for the next one...
If flying helicopters is what you want most, long or short hairs will make no difference, you will do it. (Many times I have been barked at "Marechal des Logis Alicopter... hair dresser... NOW... it's an order" when in the french ALAT... had no choice then!). If and when the question of your hair style arises, tell your interlocutor that if necessary you are willing to cut it but that you think that this is who you are and you like yourself this way and would like to stay that way. Feeling good about yourself is more important than "acting" something you are not. Actually, people are more and more open minded about it. My son has dreadlocks, washes his hair twice a week with a special shampoo, showers every day, never swears, is very polite and always helping others, does not drink any alcohol at all, does not smoke or inhale any tobacco or drugs, (he could not be at the European level he is at sports and martial arts if he did!...) eat healthy, is very much liked by all our friends and family and seeing his apparent success with the Ladies, at 25, very "popular". Go for it, believe in yourself, be confident and let your passion for flying show. Work hard, study hard, always be alert and take great care of having a healthy lifestyle and you will fly over the hurdles. Good luck to you. alicopter.