Steve offered up some great advice to this question. I would also recommend that you start in a fashion industry role where you can interact with the customer. An example of a role could be a sales employee at a local retailer.
Starting out in a role where you interact with the customer will give you a perspective of how the end user shops and how they appreciate fashion. With that understanding it provides you a solid foundation in the fashion industry to have the customer perspective as you grow into various fashion industry roles.