No do not give up if it is your dream. Fashion is an extremely difficult career to get in to because so many people want to do it and there is so much competition. But, it is the same in any career worth doing, so what あなた going to do in life, nothing?????. If this is what あなた want to do then あなた need advice, from a university, careers adviser または even someone who is already doing it. The help is out there あなた just need to look for it. Please do not give up on your dreams, if あなた do that then anything else is pointless.